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Error 25015 while installing .NET Framework 2.0

    Question

  • Hi there,

    I try to install .Net Framework 2.0 and encounter this error :

    Error 25015.Failed to  install assembly

    'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.VSA.dll' because of system error: The filename, directory name, or volume label setup syntax is incorrect.

    Please help!

    Saturday, May 20, 2006 7:12 AM

Answers

  • I had the same problem and finally found that by running the filemon utility mentioned in this forum, that the problem was caused by an "ACCESS DENIED" error on c:\windows\assembly.   I don't know why but the NT AUTHORITY\SYSTEM user had no rights there.  Or at least I did this from a command line, hit retry, and it then it continued the install!

    It may be improper by some standards but this is what I did:

    cd \windows

    cacls assembly /G SYSTEM:F

     

    Monday, June 12, 2006 7:09 PM

All replies

  • Pl. make sure that no Antivirus is running while installing.

    Disable all AV services & then try installing the framework.

     

    • Proposed as answer by grandma4jh Sunday, April 11, 2010 9:19 PM
    Sunday, May 21, 2006 2:01 AM
  • Yes. I have disabled all the AV services but still get the same error.

    Please help!

    Sunday, May 21, 2006 4:13 AM
  • dearJordan,

    Have you cleaned the failed install of .net2.0 completely before trying again?

    try this win installer cleanup util:

    http://download.microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e1bd/msicuu2.exe

    Also see this blog

    http://blogs.msdn.com/astebner/archive/2005/04/16/408856.aspx

    Sunday, May 21, 2006 4:36 AM
  • Vasudev,

    I have checked the failed install of .net2.0 and retry. But,still get the same error.

    FYI, I have VS2003 and .Net1.1 installed and want to install .Net2.0

    Here is the log.


    [05/21/06,14:39:15] ========== Logging started ==========
    [05/21/06,14:39:15] =====================================
    [05/21/06,14:39:15] No language specified in ini file default to OS language
    [05/21/06,14:39:15] Set lang to 1033
    [05/21/06,14:39:15]  Pending Reboot Table state : Logging start
    [05/21/06,14:39:15]    _________________________________________
    [05/21/06,14:39:15] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD3B.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:15] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD3C.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:39:15] (PCANotify.dll, PCANotify) C:\Config.Msi\10068e.rbf   ( 11.0.1.764 )    ( Fri Oct 31 11:01:00 2003 )     Delete
    [05/21/06,14:39:15] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD85.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:15] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD86.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:39:15] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBDB2.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:15] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBDB3.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:39:16] (shfusres.dll, shfusres.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16A.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:29:00 2005 )     Delete
    [05/21/06,14:39:16] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16B.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:16] (shfusion.dll, shfusion.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16C.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:56 2005 )     Delete
    [05/21/06,14:39:16] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD16D.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:39:16] (fusion.dll, fusion.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16E.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:16] (culture.dll, culture.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16F.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:58 2005 )     Delete
    [05/21/06,14:39:16] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD18F.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:39:16] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD190.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:39:16]  Pending Reboot Table state : Logging end
    [05/21/06,14:39:16]    _________________________________________
    [05/21/06,14:39:16] Logging property values
    [05/21/06,14:39:16] PROPERTY ProductName Microsoft .NET Framework 2.0
    [05/21/06,14:39:16] PROPERTY  C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\IXP000.TMP\netfx.msi
    [05/21/06,14:39:16] PROPERTY ProductMsi netfx.msi
    [05/21/06,14:39:16] PROPERTY Ini Filename C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\IXP000.TMP\install.ini
    [05/21/06,14:39:16] PROPERTY ProductCode 
    [05/21/06,14:39:16] PROPERTY ProductRegKey SOFTWARE\Microsoft\NET Framework Setup\NDP\v2.0.50727
    [05/21/06,14:39:16] PROPERTY ProductRegValue OCM
    [05/21/06,14:39:16] PROPERTY ProductRegData 
    [05/21/06,14:39:16] PROPERTY ProductSupportURL http://go.microsoft.com/fwlink/?LinkId=45396
    [05/21/06,14:39:16] PROPERTY DefaultDirInstallToken URTInstallPath.3643236F_FC70_11D3_A536_0090278A1BB8
    [05/21/06,14:39:16] PROPERTY Install 0
    [05/21/06,14:39:16] PROPERTY SupportWin9X 1
    [05/21/06,14:39:16] PROPERTY MinNTVersion 5.0
    [05/21/06,14:39:16] PROPERTY CheckAdminRights 1
    [05/21/06,14:39:16] PROPERTY BlockOn64Platform 1
    [05/21/06,14:39:16] PROPERTY ShowFeatureOptions 0
    [05/21/06,14:39:16] PROPERTY ShowDestinationFolder 0
    [05/21/06,14:39:16] PROPERTY LogFilePrefix dd_netfx20
    [05/21/06,14:39:16] PROPERTY CustomTextPrefix CustomText
    [05/21/06,14:39:16] PROPERTY MSI Log name C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\dd_netfx20MSI1700.txt
    [05/21/06,14:39:16] PROPERTY Msi Command Line properties 
    [05/21/06,14:39:16] PROPERTY VerboseLog 1
    [05/21/06,14:39:16] PROPERTY RebootMode 1
    [05/21/06,14:39:16] PROPERTY UILanguage 1033
    [05/21/06,14:39:16] PROPERTY BitmapFile C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\IXP000.TMP\netfx.bmp
    [05/21/06,14:39:16] PROPERTY User Canceled 0
    [05/21/06,14:39:16] PROPERTY Red 
    [05/21/06,14:39:16] PROPERTY Green 
    [05/21/06,14:39:16] PROPERTY Blue 
    [05/21/06,14:39:16] PROPERTY Current Dir C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\IXP000.TMP\
    [05/21/06,14:39:16] PROPERTY Temp Dir C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\Temp\
    [05/21/06,14:39:16] PROPERTY Usage Mode 0
    [05/21/06,14:39:16] PROPERTY Admin Mode 0
    [05/21/06,14:39:16] PROPERTY Maintenance Mode 
    [05/21/06,14:39:16] PROPERTY Silent Mode 0
    [05/21/06,14:39:16] PROPERTY Silent Mode Uninstall 0
    [05/21/06,14:39:16] PROPERTY WatsonSilent 0
    [05/21/06,14:39:16] PROPERTY WatsonUI 0
    [05/21/06,14:39:16] PROPERTY Silent Mode UI string 
    [05/21/06,14:39:16] PROPERTY SkipAllChecks 0
    [05/21/06,14:39:16] PROPERTY WatsonGenerateManifestOnly 
    [05/21/06,14:39:16] PROPERTY UninstallWarning 1
    [05/21/06,14:39:16] PROPERTY ControlMSIService 1
    [05/21/06,14:39:16] PROPERTY RTL Language 0
    [05/21/06,14:39:16] PROPERTY PostSetupCommandRegKey 
    [05/21/06,14:39:16] PROPERTY GlobDataINIPresent 
    [05/21/06,14:39:26] Checking Windows Installer version...
    [05/21/06,14:39:26] msi.dll loaded ok
    [05/21/06,14:39:26] Looking for: 2.0.0
    [05/21/06,14:39:26] Found: 3.1.4000
    [05/21/06,14:39:26] Windows Installer version ok
    [05/21/06,14:39:26] Finished Checking Windows Installer version. Return code 0
    [05/21/06,14:39:26] Entering CMsiInstaller::ThreadInit
    [05/21/06,14:39:26] Leaving CMsiInstaller::ThreadInit
    [05/21/06,14:39:26] Checking Windows Installer version...
    [05/21/06,14:39:26] msi.dll loaded ok
    [05/21/06,14:39:26] Looking for: 2.0.0
    [05/21/06,14:39:26] Found: 3.1.4000
    [05/21/06,14:39:26] Windows Installer version ok
    [05/21/06,14:39:26] Finished Checking Windows Installer version. Return code 0
    [05/21/06,14:39:26] Entering  CNavigator::Start
    [05/21/06,14:39:26] Running all checks
    [05/21/06,14:39:26] Running system checks
    [05/21/06,14:39:26] SYSTEM CHECK: : One instance of setup running  Passed
    [05/21/06,14:39:26] SYSTEM CHECK: : Administrative rights check  Passed
    [05/21/06,14:39:26] SYSTEM CHECK: : Minimum NT Version 5.0  Passed
    [05/21/06,14:39:26] SYSTEM CHECK: : Runing on 64 bit wow check  Passed
    [05/21/06,14:39:26] SYSTEM CHECK: : OCM product installed  Passed
    [05/21/06,14:39:26] Running prereq checks
    [05/21/06,14:39:26] PREREQ CHECK: : Microsoft Internet Explorer 5.01  Passed
    [05/21/06,14:39:26] Checking Windows Installer version...
    [05/21/06,14:39:26] msi.dll loaded ok
    [05/21/06,14:39:26] Looking for: 3.0.0
    [05/21/06,14:39:26] Found: 3.1.4000
    [05/21/06,14:39:26] Windows Installer version ok
    [05/21/06,14:39:26] Finished Checking Windows Installer version. Return code 0
    [05/21/06,14:39:26] PREREQ CHECK: : Microsoft Windows Installer 3.0  Passed
    [05/21/06,14:39:26] PREREQ CHECKS:  Passed
    [05/21/06,14:39:26] Running block checks
    [05/21/06,14:39:26] BETA CHECK:   Passed
    [05/21/06,14:39:27] Entering CNavigator::WindowCreation
    [05/21/06,14:39:27] Entering CNavigator::LoadPages
    [05/21/06,14:39:27] Entering CMsiInstaller::IsInstalled
    [05/21/06,14:39:27] Entering CMsiInstaller::GetProductCode
    [05/21/06,14:39:27] Leaving CMsiInstaller::GetProductCode
    [05/21/06,14:39:27] Leaving CMsiInstaller::IsInstalled
    [05/21/06,14:39:27] Created Page: Welcome Page
    [05/21/06,14:39:27] Created Page: EULA Page
    [05/21/06,14:39:27] Created Page: Progress Page
    [05/21/06,14:39:27] Created Page: Final Page
    [05/21/06,14:39:27] Leaving CNavigator::LoadPages
    [05/21/06,14:39:27] Entering CMsiInstaller::RegisterUIInterfaces
    [05/21/06,14:39:27] Leaving CMsiInstaller::RegisterUIInterfaces
    [05/21/06,14:39:33] Entering CMsiInstaller::StartInitialization
    [05/21/06,14:39:33] Leaving CMsiInstaller::StartInitialization
    [05/21/06,14:39:33] Entering CMsiInstaller::InitSequence
    [05/21/06,14:39:33] Entering CNavigator::Next
    [05/21/06,14:39:33] Leaving CNavigator::Next
    [05/21/06,14:39:36] Leaving CMsiInstaller::InitSequence
    [05/21/06,14:39:36] Entering CNavigator::Next
    [05/21/06,14:39:36] Entering CMsiInstaller::BeginInstall
    [05/21/06,14:39:36] Entering CMsiInstaller::GetMscoreeVersionFromSystem
    [05/21/06,14:39:36] Version of C:\WINDOWS\system32\mscoree.dll is 1.1.4322.573
    [05/21/06,14:39:36] Leaving CMsiInstaller::GetMscoreeVersionFromSystem
    [05/21/06,14:39:36] Entering CMsiInstaller::GetMscoreeVersionFromMsi
    [05/21/06,14:39:36] Version of mscoree.dll in the msi package is 2.0.50727.42.
    [05/21/06,14:39:36] Leaving CMsiInstaller::GetMscoreeVersionFromMsi
    [05/21/06,14:39:37] MsiInstallProduct called with Command line:
    [05/21/06,14:39:37] USING_EXUIH=1 REBOOT=ReallySuppress FILESINUSETEXT=""
    [05/21/06,14:39:40] Entering CNavigator::Next
    [05/21/06,14:39:40] Leaving CNavigator::Next
    [05/21/06,14:41:10] Display message
    [05/21/06,14:41:10] Error 25015.Failed to install assembly 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Vsa.dll' because of system error: The filename, directory name, or volume label syntax is incorrect.

    [05/21/06,14:42:19] ***ERROR EVENT*** : Custom Action Failure:Action ended 14:42:19: InstallFinalize. Return value 3..
    [05/21/06,14:42:19] ***ERROR EVENT*** : See Windows Install log  for details.
    [05/21/06,14:42:47] ***ERROR EVENT*** : Custom Action Failure:Action ended 14:42:47: INSTALL. Return value 3..
    [05/21/06,14:42:47] ***ERROR EVENT*** : See Windows Install log  for details.
    [05/21/06,14:42:47] Entering CMsiInstaller::SuppressReboot
    [05/21/06,14:42:47] Leaving CMsiInstaller::SuppressReboot
    [05/21/06,14:42:54] Entering CNavigator::Next
    [05/21/06,14:42:54] StopDarwinService: Entering the function
    [05/21/06,14:42:54] Leaving CNavigator::Next
    [05/21/06,14:42:55] StopDarwinService: Stopped successfully! Return TRUE
    [05/21/06,14:42:56] Darwin service was successfully stopped after INSTALL
    [05/21/06,14:43:44] Entering CFinalPage::Cancel. - Post Quit message to UI thread
    [05/21/06,14:43:44] Entering CNavigator::OnDestroy
    [05/21/06,14:43:44] Making synchronous call to worker to stop
    [05/21/06,14:43:44] Entering CMsiInstaller::Stop
    [05/21/06,14:43:44] Leaving CMsiInstaller::WorkerThread
    [05/21/06,14:43:44] Leaving CMsiInstaller::Stop
    [05/21/06,14:43:44] Leaving CNavigator::OnDestroy
    [05/21/06,14:43:44] Leaving CNavigator::WindowCreation
    [05/21/06,14:43:44] Leaving  CNavigator::Start
    [05/21/06,14:43:44] Process returning code 1603
    [05/21/06,14:43:44]  Pending Reboot Table state : Logging start
    [05/21/06,14:43:44]    _________________________________________
    [05/21/06,14:43:44] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD3B.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:44] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD3C.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:44] (PCANotify.dll, PCANotify) C:\Config.Msi\10068e.rbf   ( 11.0.1.764 )    ( Fri Oct 31 11:01:00 2003 )     Delete
    [05/21/06,14:43:44] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD85.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:44] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD86.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:44] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBDB2.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:45] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBDB3.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:45] (shfusres.dll, shfusres.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16A.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:29:00 2005 )     Delete
    [05/21/06,14:43:45] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16B.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:45] (shfusion.dll, shfusion.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16C.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:56 2005 )     Delete
    [05/21/06,14:43:45] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD16D.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:45] (fusion.dll, fusion.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16E.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:45] (culture.dll, culture.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD16F.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:58 2005 )     Delete
    [05/21/06,14:43:45] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD18F.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:45] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD190.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:45] (mscorwks.dll, mscorwks.dll) C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\TBD1B0.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:50 2005 )     Delete
    [05/21/06,14:43:45] (mscoree.dll, mscoree.dll) C:\WINDOWS\system32\TBD1B1.tmp   ( 2.0.50727.42 (RTM.050727-4200) )    ( Fri Sep 23 07:28:52 2005 )     Delete
    [05/21/06,14:43:45]  Pending Reboot Table state : Logging end
    [05/21/06,14:43:45]    _________________________________________
    [05/21/06,14:43:45] =========== Logging ended ===========
    [05/21/06,14:43:45] =====================================
    [05/21/06,14:43:45] 
    [05/21/06,14:43:45] 
    [05/21/06,14:43:45] 

    Sunday, May 21, 2006 6:50 AM
  • Bit of a long shot, but, note how "C:\DOCUME~1\CHOON_~1.9S3\LOCALS~1\" appears several times in the installation log.  I've seen this happen a long time ago on an old Windows 95 or 98 PC.  The user ran an old version of the chkdsk utility and got all his long file names truncated to old DOS 8.3 names.  Hope this isn't it...
    Friday, May 26, 2006 12:17 AM
    Moderator
  • I had the same problem and finally found that by running the filemon utility mentioned in this forum, that the problem was caused by an "ACCESS DENIED" error on c:\windows\assembly.   I don't know why but the NT AUTHORITY\SYSTEM user had no rights there.  Or at least I did this from a command line, hit retry, and it then it continued the install!

    It may be improper by some standards but this is what I did:

    cd \windows

    cacls assembly /G SYSTEM:F

     

    Monday, June 12, 2006 7:09 PM
  • I completely reinstalled windows. Away the problem  And voila... first installed iis and .net framework 2.0... then all the windows updates.

     

    Friday, July 28, 2006 11:00 PM
  • remove the \windows\assembly folder. should works.
    Thursday, August 31, 2006 4:41 AM
  • Wanted to thank you for the useful info on modifying the ACL of the assembly folder. After doing this the installer did continue but then stopped again. Analyzing the problem with FileMon I noticed that it was getting hung up creating a new folder GAC_32, so I modified the assembly folder so that it was viewable (Open REGEDIT and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion create a new DWord key “DisableCacheViewer” and set its value to 1), and attempted to manually create it. Doing so generated an error: File already exists. So I enabled viewing of system files and voila! there appeared a file with no extension with the same name that was preventing the folder from being created. After renaming the file to GAC_32.old the installer was able to finish. I'm not certain what would have created this 0 byte file but it seems suspicious that it would be there. Almost as if some program was deliberately attempting to prevent its installation.


    Hope this was helpful to others out there still having problems.


    ---oakleymk

     

    Friday, September 1, 2006 2:06 PM
  • I renamed the assembly folder to assembly_ and reinstalled all is well.

    This is by far the most simple fix. Thank-you BoyCali01
    • Proposed as answer by dudu shamir Tuesday, February 10, 2009 10:00 AM
    Saturday, September 30, 2006 5:17 PM
  • This totally dumbly simple trick worked like a charm. Thanks a lot
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Saturday, January 20, 2007 2:06 PM
  • I Have tried everything in these threads to fix Error 25015 failed to install assembly microsoft.visualbasic.vsa.dll system error...with no luck.

    I urgently need to be able to use visual studio and cannot without net framework 2.0 installed

    I have a new HP notebook computer.

    I am running win XP S2.

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:26 PM
    Friday, May 11, 2007 3:23 AM
  • Try the following in the command prompt:

     

    cd\windows      OR     cd\winnt   (depending on the name of your windows directory)

    cacls Microsoft.Net /G SYSTEM:F

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:26 PM
    Monday, July 30, 2007 8:34 PM
  • The renaming trick is really so so so simple and gets over the problem perfectly
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:26 PM
    Friday, August 3, 2007 9:21 AM
  • Hello I am still having difficulty with .NET Framework 2.0 error 25015. I have tried the renaming, deleting, etc but none have worked.
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Saturday, August 4, 2007 5:15 AM
  •  

    I did the same and it worked great - much appreciation to BoyCali01 and the others for this information. 

     

    .NET 2.0 installed flawlessly after renaming the  windows\assembly folder to simply assembly_


    Thanks.

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Monday, October 1, 2007 4:02 PM
  •  

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Monday, October 22, 2007 4:29 PM
  • ok i just deleted the foldder named v2.0.50727 in the C:\WINDOWS\Microsoft.NET\Framework\

     

    and reinstalled frameworks

    • Proposed as answer by AgentParanoia Friday, November 21, 2008 4:24 AM
    Friday, October 26, 2007 3:14 PM
  • You are a freaking genius!!! thanks !!!!!!
    Thursday, November 1, 2007 9:13 AM
  •  

    Deleting the v2... file worked thanks for all the info guys!
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Sunday, November 18, 2007 8:05 AM
  • How do u rename this?

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Sunday, March 2, 2008 6:07 PM
  •  

    Hmm what do u mean rename??

     

    i didnt say u had to rename anything. read again

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Monday, March 3, 2008 9:47 PM
  • Thanks for sharing this brilliant solution!  It saved my family from hearing a lot of ranting and raving!

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Wednesday, March 12, 2008 1:24 AM
  • For those that get THIS message below, while trying to install .Net Framework 2.0 this is exactly what you do.

    Error 25015. failed to install assembly C:\Windows\Microsoft.NetFramework\VisualBasic.Vsa.dll because of system error: Data error (Cyclic redundancy check)

    1. click start
    2. click my computer
    3. click local disk C
    4. click the Windows folder
    5. rename the assembly folder to assembly_   (Yes with the underscore)
    6. Then reinstall the NetFramework 2.0. It should work perfectly.

    7. As an option you may want to download Net Framework service packs as well.

    Thanks to boycali01 and others who gave this advice. I needed it to update my video drivers.

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Thursday, March 27, 2008 10:02 PM
  • Thanks to Cemuni and boycali01 for making this soooooo simple!!  

    Followed your instructions above and hey presto it worked.

    Thanks again
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Wednesday, June 18, 2008 8:09 PM
  • Thank you for all who gave information throughout this topic. I needed to do this to make sure my video drivers were working as well! I tried all of the above mentioned, but this reply is what corrected my problem. I am very gracious too YOU KEEP UP THE GREAT WORK.
    Friday, November 21, 2008 4:26 AM
  • I had the same problem. Thanks you for so simple solution. 
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Tuesday, November 25, 2008 3:07 PM
  • two and a half years after you advised how to overcome the error about .net installation - i encounter the same problem when tryint to install the tools which Canon had provided me with the new little camera i bought. surprize surprize - this is the only advise that worked!!!! i envey you in a positive manner for knowing this workaround and really thanks for sharing this information with me!!
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Tuesday, February 10, 2009 9:59 AM
  • Wow!! How simple! I spent hours applying other "solutions" without success but renaming the assembly folder to assembly_ actually worked!  Can anyone explain why?
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Wednesday, April 1, 2009 1:04 AM
  • This does not work on my system!

    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Sunday, September 6, 2009 3:17 PM
  • thank you so freakin much x.x this thing drove me up the wall when i desperately needed it. man im so relieved xD TY!!!
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Saturday, September 26, 2009 5:26 AM
  • Astronutty is my HERO!!!!!!  Worked like a charm.
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Monday, October 19, 2009 9:30 PM
  • Worked for me as well. Fantastic! Any reason to change the assembly_ back to just assembly?
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Saturday, October 24, 2009 4:45 PM
  • This did not work for me. I am running win XP media center edition on my laptop.

    I stil get the same error.
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Sunday, October 25, 2009 8:48 AM
  • When I try to rename the assembly folder I get a security error.

    I am running win xp media center edition.
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:27 PM
    Sunday, October 25, 2009 8:49 AM
  • This fix does not work on my system
    • Proposed as answer by bbleroy Sunday, December 27, 2009 8:54 AM
    Sunday, November 1, 2009 10:13 AM
  • I have net 2.0 installed but it won't install some other programs because of something wrong or missing
     
    Wednesday, November 18, 2009 10:00 PM
  • My error was always:

    Error 25015.Het installeren van assembly C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Compatibility.dll is mislukt vanwege systeemfout: 0x8013110

    Or in english (i know it's very bad):

    Error 25015.The installing of assembly C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Compatibility.dll is aborted because of systemerror: 0x8013110

    But after deleting the directory of v2... it was installed succesfully!!
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:28 PM
    Saturday, December 26, 2009 9:11 PM
  • ty so much have been trying everything. I am so bad with computers that i have to my my grandkids read computers for dummies to me.  It worked great . ty ty ty ty ty
    jd
    • Proposed as answer by v003114 Thursday, April 14, 2011 1:28 PM
    Monday, October 18, 2010 8:51 PM
  • ok i just deleted the foldder named v2.0.50727 in the C:\WINDOWS\Microsoft.NET\Framework\

     

    and reinstalled frameworks


    Thank You

    yup that work for me :)

    Thursday, October 21, 2010 1:44 AM
  • This is the greatest yet simplest solution to the problem!! After trying several complicated strategies and workarounds I luckily found this one that has worked, as David75 said, "like a charm". THAAAAANK YOU SO MUCH!!
    Sunday, July 3, 2011 11:10 PM
  • Wow thanks soooooo much!!!! Your amazing!!! :)
    Friday, August 5, 2011 8:04 AM
  • I had the msg

    Error 25015. Failed to install assembly 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Compatibility.dll' because of system error: 0x80131107

    Just to be 'safe', I renamed the folder v2.0.50727 to v2.0.50727Baad and ...Framework 2 installed nicely! --with a replaced folder v2.0.50727.

    Question for Microsoft: If you know what happened (system error: 0x80131107), why don't you offer a solution, instead of directing me to 'Support' and let me wade through lots of 'solutions' like deleting folders (Assembly? v2.0.50727?) that look like the proverbial hammer to smash a fly?

    If there was a problem with the file Microsoft.VisualBasic.Compatibility.dll (which exists in the 'bad' as well as the new folder v2.0.50727), why not just replace it?

     


    • Edited by TAB4217 Thursday, December 29, 2011 2:03 AM
    Thursday, December 29, 2011 2:01 AM
  • ok i just deleted the foldder named v2.0.50727 in the C:\WINDOWS\Microsoft.NET\Framework\

    and reinstalled frameworks


    Works like a dream was having trouble for ages and then tried this star thanks
    Tuesday, August 28, 2012 8:50 PM
  • This worked for me, Thanks boycali!
    Thursday, January 31, 2013 9:28 PM