Error 25015 while installing .NET Framework 2.0

Sat, 20 May 2006 07:12:13 Z

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!

Error 25015 while installing .NET Framework 2.0

Sun, 21 May 2006 02:01:34 Z

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

Disable all AV services & then try installing the framework.

Error 25015 while installing .NET Framework 2.0

Sun, 21 May 2006 04:13:03 Z

Yes. I have disabled all the AV services but still get the same error.

Please help!

Error 25015 while installing .NET Framework 2.0

Sun, 21 May 2006 04:36:46 Z

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

Error 25015 while installing .NET Framework 2.0

Sun, 21 May 2006 06:50:48 Z

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]

Error 25015 while installing .NET Framework 2.0

Fri, 26 May 2006 00:17:22 Z

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...

Error 25015 while installing .NET Framework 2.0

Mon, 12 Jun 2006 19:09:01 Z

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

Error 25015 while installing .NET Framework 2.0

Fri, 28 Jul 2006 23:00:16 Z

I completely reinstalled windows. Away the problem And voila... first installed iis and .net framework 2.0... then all the windows updates.

Error 25015 while installing .NET Framework 2.0

Thu, 31 Aug 2006 04:41:07 Z

remove the \windows\assembly folder. should works.

Error 25015 while installing .NET Framework 2.0

Fri, 01 Sep 2006 14:06:54 Z

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

Error 25015 while installing .NET Framework 2.0

Sat, 30 Sep 2006 17:17:25 Z

I renamed the assembly folder to assembly_ and reinstalled all is well.

This is by far the most simple fix. Thank-you BoyCali01

Error 25015 while installing .NET Framework 2.0

Sat, 20 Jan 2007 14:06:25 Z

This totally dumbly simple trick worked like a charm. Thanks a lot

Error 25015 while installing .NET Framework 2.0

Fri, 11 May 2007 03:23:31 Z

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.

Error 25015 while installing .NET Framework 2.0

Mon, 30 Jul 2007 20:34:01 Z

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

Error 25015 while installing .NET Framework 2.0

Fri, 03 Aug 2007 09:21:08 Z

The renaming trick is really so so so simple and gets over the problem perfectly

Error 25015 while installing .NET Framework 2.0

Sat, 04 Aug 2007 05:15:34 Z

Hello I am still having difficulty with .NET Framework 2.0 error 25015. I have tried the renaming, deleting, etc but none have worked.

Error 25015 while installing .NET Framework 2.0

Mon, 01 Oct 2007 16:02:15 Z

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.

Error 25015 while installing .NET Framework 2.0

Mon, 22 Oct 2007 16:29:53 Z

Error 25015 while installing .NET Framework 2.0

Fri, 26 Oct 2007 15:14:43 Z

ok i just deleted the foldder named v2.0.50727 in the C:\WINDOWS\Microsoft.NET\Framework\

and reinstalled frameworks

Error 25015 while installing .NET Framework 2.0

Thu, 01 Nov 2007 09:13:01 Z

You are a freaking genius!!! thanks !!!!!!

Error 25015 while installing .NET Framework 2.0

Sun, 18 Nov 2007 08:05:24 Z

Deleting the v2... file worked thanks for all the info guys!

Error 25015 while installing .NET Framework 2.0

Sun, 02 Mar 2008 18:07:13 Z

How do u rename this?

Error 25015 while installing .NET Framework 2.0

Mon, 03 Mar 2008 21:47:34 Z

Hmm what do u mean rename??

i didnt say u had to rename anything. read again

Error 25015 while installing .NET Framework 2.0

Wed, 12 Mar 2008 01:24:12 Z

Thanks for sharing this brilliant solution! It saved my family from hearing a lot of ranting and raving!

Error 25015 while installing .NET Framework 2.0

Thu, 27 Mar 2008 22:02:01 Z

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.

Error 25015 while installing .NET Framework 2.0

Wed, 18 Jun 2008 20:09:29 Z

Thanks to Cemuni and boycali01 for making this soooooo simple!!

Followed your instructions above and hey presto it worked.

Thanks again

Error 25015 while installing .NET Framework 2.0

Fri, 21 Nov 2008 04:26:10 Z

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.

Error 25015 while installing .NET Framework 2.0

Tue, 25 Nov 2008 15:07:10 Z

I had the same problem. Thanks you for so simple solution.

Error 25015 while installing .NET Framework 2.0

Tue, 10 Feb 2009 09:59:28 Z

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!!

Error 25015 while installing .NET Framework 2.0

Wed, 01 Apr 2009 01:04:54 Z

Wow!! How simple! I spent hours applying other "solutions" without success but renaming the assembly folder to assembly_ actually worked! Can anyone explain why?

Error 25015 while installing .NET Framework 2.0

Sun, 06 Sep 2009 15:17:32 Z

This does not work on my system!

Error 25015 while installing .NET Framework 2.0

Sat, 26 Sep 2009 05:26:17 Z

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!!!

Error 25015 while installing .NET Framework 2.0

Mon, 19 Oct 2009 21:30:17 Z

Astronutty is my HERO!!!!!! Worked like a charm.

Error 25015 while installing .NET Framework 2.0

Sat, 24 Oct 2009 16:45:55 Z

Worked for me as well. Fantastic! Any reason to change the assembly_ back to just assembly?

Error 25015 while installing .NET Framework 2.0

Sun, 25 Oct 2009 08:48:07 Z

This did not work for me. I am running win XP media center edition on my laptop.

I stil get the same error.

Error 25015 while installing .NET Framework 2.0

Sun, 25 Oct 2009 08:49:06 Z

When I try to rename the assembly folder I get a security error.

I am running win xp media center edition.

Error 25015 while installing .NET Framework 2.0

Sun, 01 Nov 2009 10:13:15 Z

This fix does not work on my system

Error 25015 while installing .NET Framework 2.0

Wed, 18 Nov 2009 22:00:10 Z

I have net 2.0 installed but it won't install some other programs because of something wrong or missing