Could not load type 'Microsoft.TeamFoundation.WebAccess.CompressionModule'

After installing Microsoft Security Patches, we're unable to use TFS Web Access due to this error:
Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load type 'Microsoft.TeamFoundation.WebAccess.CompressionModule'. (D:\Program Files\Microsoft Visual Studio 2008 Team System Web Access\Web\web.config line 125)

Source Error:

Line 123:

Line 124:

Line 125:

Line 126:

Line 127:

Source File: D:\Program Files\Microsoft Visual Studio 2008 Team System Web Access\Web\web.config Line: 125

1. By "< path to the assembly .dll file >", would you please be specific on which assembly dll to install?

2. As to your question whether VS 2008 SP1 is installed... the answer is yes, it was installed immediatly after installing TFS over a year ago. To double-check, I logged into the TFS server (single-server TFS installation), ran VS so I can do Help About. The problem is, VS is now unable to load due to "Cannot find one or more complonents. Please reinstall the application.” It used to work in the past. I ran Dependency Walker and below is the log leading up to the error:

Loaded "c:\windows\system32\MSCTFIME.IME" at address 0x4DC30000. Successfully hooked module.

DllMain(0x4DC30000, DLL_PROCESS_ATTACH, 0x00000000) in "c:\windows\system32\MSCTFIME.IME" called.

LoadLibraryA("C:\WINDOWS\system32\ole32.dll") called from "c:\windows\system32\MSCTFIME.IME" at address 0x4DC4D503.

LoadLibraryA("C:\WINDOWS\system32\ole32.dll") returned 0x77670000.

GetProcAddress(0x77670000 [c:\windows\system32\OLE32.DLL], "CoCreateInstance") called from "c:\windows\system32\MSCTFIME.IME" at address 0x4DC4A316 and returned 0x776A692A.

DllMain(0x4DC30000, DLL_PROCESS_ATTACH, 0x00000000) in "c:\windows\system32\MSCTFIME.IME" returned 1 (0x1).

GetProcAddress(0x7C800000 [c:\windows\system32\NTDLL.DLL], "RtlDllShutdownInProgress") called from "c:\windows\system32\MSCTFIME.IME" at address 0x4DC48A7E and returned 0x7C81A1B5.

LoadLibraryW("comctl32.dll") called from "c:\windows\system32\USER32.DLL" at address 0x7738F042.

LoadLibraryW("comctl32.dll") returned 0x77420000.

GetProcAddress(0x77420000 [c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL], "RegisterClassNameW") called from "c:\windows\system32\USER32.DLL" at address 0x7738F05A and returned 0x77432EF8.

GetProcAddress(0x77E40000 [c:\windows\system32\KERNEL32.DLL], "ActivateActCtx") called from "c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL" at address 0x774AAE82 and returned 0x77E5F326.

GetProcAddress(0x77E40000 [c:\windows\system32\KERNEL32.DLL], "DeactivateActCtx") called from "c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL" at address 0x774AAED8 and returned 0x77E5F357.

LoadLibraryA("UxTheme.dll") called from "c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL" at address 0x77423FAF.

Loaded "c:\windows\system32\UXTHEME.DLL" at address 0x71B70000. Successfully hooked module.

DllMain(0x71B70000, DLL_PROCESS_ATTACH, 0x00000000) in "c:\windows\system32\UXTHEME.DLL" called.

DllMain(0x71B70000, DLL_PROCESS_ATTACH, 0x00000000) in "c:\windows\system32\UXTHEME.DLL" returned 1 (0x1).

LoadLibraryA("UxTheme.dll") returned 0x71B70000.

GetProcAddress(0x71B70000 [c:\windows\system32\UXTHEME.DLL], "EnableThemeDialogTexture") called from "c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL" at address 0x77424010 and returned 0x71B72331.

GetProcAddress(0x71B70000 [c:\windows\system32\UXTHEME.DLL], "OpenThemeData") called from "c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.3790.3959_x-ww_d8713e55\COMCTL32.DLL" at address 0x77424010 and returned 0x71B71E30.

LoadLibraryW("comctl32.dll") called from "c:\windows\system32\USER32.DLL" at address 0x7738F042.

LoadLibraryW("comctl32.dll") returned 0x77420000.

GetProcAddress(0x7C800000 [c:\windows\system32\NTDLL.DLL], "RtlDllShutdownInProgress") called from "c:\windows\system32\MSCTF.DLL" at address 0x4B3CD59C and returned 0x7C81A1B5.

LoadLibraryW("C:\WINDOWS\system32\Msctf.dll") called from "c:\windows\system32\MSCTFIME.IME" at address 0x4DC4D5A5.

LoadLibraryW("C:\WINDOWS\system32\Msctf.dll") returned 0x4B3C0000.

GetProcAddress(0x4B3C0000 [c:\windows\system32\MSCTF.DLL], "TF_DllDetachInOther") called from "c:\windows\system32\MSCTFIME.IME" at address 0x4DC49A2C and returned 0x4B3E668F.

GetProcAddress(0x79000000 [c:\windows\system32\MSCOREE.DLL], "CorExitProcess") called from "c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4148_x-ww_d495ac4e\MSVCR90.DLL" at address 0x785421A5 and returned 0x79016CAE.

Should I reinstall VS on the server? Add or Remove Programs shows “Microsoft Visual Studio Team System 2008 Team Suite – ENU” is installed. Do I uninstall, then re-install it? Do I then re-install VS 2008 SP1? What about Web Access (the one giving me issues in the first place) – does it need to be re-installed?