Applies to:
Windows Server 2008 R2 Service Pack 1
Windows Server 2008 R2 SP1
W2K8 R2 Service Pack 1
W2K8 R2 SP1

Windows 7 Service Pack 1
Windows 7 SP1
Win7 Service Pack 1
Win7 SP1

Note: You should check http://support.microsoft.com for the latest version of the different files.

List of Windows Remote Management (WinRM) related hotfixes post SP1 for Windows 7 SP1 and Windows Server 2008 R2 SP1 as of Feb. 2012:

Originally published on Mar. 2011.

2659071 WinRM does not transfer impersonation tokens correctly in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2659071
Update(s):
Wsmanhttpconfig.exe
Wsmanmigrationplugin.dll
Wsmauto.dll
Wsmsvc.dll
Wsmwmipl.dll

2512889 Windows Remote Management service leaks memory when it handles certificate authentication requests in Windows 7 or in Windows Server 2008 R2

http://support.microsoft.com/?id=2512889
Update(s):
Wsmanhttpconfig.exe
Wsmanmigrationplugin.dll
Wsmauto.dll
Wsmauto.mof
Wsmsvc.dll
Wsmwmipl.dll

Specific to Windows Server 2008 R2 SP1:

2608408 The BITS Compact Server service randomly stops responding under high stress in Windows Server 2008 R2 or in Windows Server 2008 SP2

http://support.microsoft.com/?id=2608408
Update(s):
Bitscompactserver.mof
Lightweightserver.dll