Urgent Problem installing .NET Framework 3.5 on Windows 2008 Std 32 bitI have installed the application role, and application server foundation service (which is supposed to up the .NET version from V2.0 to V3.0) however, the component services still show V2.0 and not V3.0. When I try to install V3.5 it fails - I assume because it needs V3.0 as a pre requisite. I have also tried installing V3.0 manually but set-up stops because it says I am supposed to install using role management, which I have already tried to do!<br/><br/>For the V3.5 install I don't get a specific error, simple &quot;Setup failed&quot;.<br/><br/>I have found the following errors in the event viewer, could they be related:?<br/><span lang=EN-GB> <p><em>.NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: System.WorkflowServices, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 . Error code = 0x80070002 <br/></em></p> </span><br/><span style="font-size:xx-small"> <p><em>MSDTC encountered an error (HR=0x80000171) while attempting to establish a secure connection with system SBEB-QP-01.</em></p> </span><span style="font-size:xx-small"> <p><em>{Registry Hive Recovered} Registry hive (file): '\??\C:\Users\DA\AppData\Local\Microsoft\Windows\UsrClass.dat' was corrupted and it has been recovered. Some data might have been lost.</em></p> </span><span style="font-size:xx-small"> <p><em>The server {752073A1-23F2-4396-85F0-8FDB879ED0ED} did not register with DCOM within the required timeout.</em></p> </span><br/>Any help would be greatly appreciated<br/>Thanks<br/>Mark© 2009 Microsoft Corporation. All rights reserved.Wed, 08 Jul 2009 02:34:15 Za40fd52b-35c8-40ec-9e8b-9d12215d9181http://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#a40fd52b-35c8-40ec-9e8b-9d12215d9181http://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#a40fd52b-35c8-40ec-9e8b-9d12215d9181Markthefroghttp://social.msdn.microsoft.com/Profile/en-US/?user=MarkthefrogUrgent Problem installing .NET Framework 3.5 on Windows 2008 Std 32 bitI have installed the application role, and application server foundation service (which is supposed to up the .NET version from V2.0 to V3.0) however, the component services still show V2.0 and not V3.0. When I try to install V3.5 it fails - I assume because it needs V3.0 as a pre requisite. I have also tried installing V3.0 manually but set-up stops because it says I am supposed to install using role management, which I have already tried to do!<br/><br/>For the V3.5 install I don't get a specific error, simple &quot;Setup failed&quot;.<br/><br/>I have found the following errors in the event viewer, could they be related:?<br/><span lang=EN-GB> <p><em>.NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: System.WorkflowServices, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 . Error code = 0x80070002 <br/></em></p> </span><br/><span style="font-size:xx-small"> <p><em>MSDTC encountered an error (HR=0x80000171) while attempting to establish a secure connection with system SBEB-QP-01.</em></p> </span><span style="font-size:xx-small"> <p><em>{Registry Hive Recovered} Registry hive (file): '\??\C:\Users\DA\AppData\Local\Microsoft\Windows\UsrClass.dat' was corrupted and it has been recovered. Some data might have been lost.</em></p> </span><span style="font-size:xx-small"> <p><em>The server {752073A1-23F2-4396-85F0-8FDB879ED0ED} did not register with DCOM within the required timeout.</em></p> </span><br/>Any help would be greatly appreciated<br/>Thanks<br/>MarkWed, 01 Jul 2009 13:13:54 Z2009-07-08T02:34:16Zhttp://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#891a1ac9-e5a8-4ef7-9ea1-748718bc6e67http://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#891a1ac9-e5a8-4ef7-9ea1-748718bc6e67Martina Damaschkehttp://social.msdn.microsoft.com/Profile/en-US/?user=Martina%20DamaschkeUrgent Problem installing .NET Framework 3.5 on Windows 2008 Std 32 bitHello,<br/><br/>try this one here: <a href="http://community.spiceworks.com/how_to/show/408">http://community.spiceworks.com/how_to/show/408</a><br/>Else I would open a call at MS as this digs too deep into the system.<br/><hr class="sig">cheers -f Martina http://www.ahk-software.de/Thu, 02 Jul 2009 07:06:55 Z2009-07-02T07:06:55Zhttp://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#c70117ba-6524-43b0-941d-0055cdad5970http://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#c70117ba-6524-43b0-941d-0055cdad5970YiChun Chenhttp://social.msdn.microsoft.com/Profile/en-US/?user=YiChun%20ChenUrgent Problem installing .NET Framework 3.5 on Windows 2008 Std 32 bitHi Markthefrog,<br/><strong><br/>Windows Server 2008 (all editions)</strong> includes the <strong>.NET Framework 2.0 SP1 and 3.0 SP1</strong> as OS component.<br/><br/>Based on your description, it seems that .NET Framework 3.0 could be corrupted. Could you please try <span style="font-size:11pt;font-family:'Calibri','sans-serif'"><a href="http://blogs.msdn.com/astebner/pages/8999004.aspx"><span style="font-size:8pt;font-family:'Verdana','sans-serif'">.NET Framework Setup Verification Tool</span></a></span><span style="font-size:8pt;color:black;font-family:'Verdana','sans-serif'"> to verify .NET Framework 3.0 on your PC?<br/><br/>If it is failed to verify, please try the following points to repair .NET Framework 3.0 files:<br/>See: <a href="http://blogs.msdn.com/astebner/archive/2007/03/26/how-to-repair-the-net-framework-2-0-and-3-0-on-windows-vista.aspx">http://blogs.msdn.com/astebner/archive/2007/03/26/how-to-repair-the-net-framework-2-0-and-3-0-on-windows-vista.aspx</a> <br/><br/>Let me know if it works.<br/><br/>Thanks</span><hr class="sig">Please remember to mark the replies as answers if they help and unmark them if they provide no help. <br/> <a href="http://cfx.codeplex.com/">Welcome to the All-In-One Code Framework!</a> If you have any feedback, please tell us.Fri, 03 Jul 2009 07:09:32 Z2009-07-03T07:09:32Zhttp://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#778261e4-3e0d-4d3a-82e1-c7a2da3d9a48http://social.msdn.microsoft.com/Forums/en/netfxsetup/thread/a40fd52b-35c8-40ec-9e8b-9d12215d9181#778261e4-3e0d-4d3a-82e1-c7a2da3d9a48YiChun Chenhttp://social.msdn.microsoft.com/Profile/en-US/?user=YiChun%20ChenUrgent Problem installing .NET Framework 3.5 on Windows 2008 Std 32 bitHi Markthefrog,<br/><br/>We are changing the issue type to “Comment” because you have not followed up with the necessary information. If you have more time to look at the issue and provide more information, please feel free to change the issue type back to “Question” by editing your initial post and changing the radio button at the top of the post editor window. If the issue is resolved, we will appreciate it if you can share the solution so that the answer can be found and used by other community members having similar questions. <br/><br/>Thank you!<hr class="sig">Please remember to mark the replies as answers if they help and unmark them if they provide no help. <br/> <a href="http://cfx.codeplex.com/">Welcome to the All-In-One Code Framework!</a> If you have any feedback, please tell us.Wed, 08 Jul 2009 02:34:02 Z2009-07-08T02:34:02Z