It's a .NET issue, Microsoft released an update here:
http://technet.microsoft.com/en-us/security/bulletin/ms12-074
You can add the registery key that is missing your self:
Registry location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework
DWORD (32-bit) Value name: LegacyWPADSupport
Value data: 0
and for 64bit machines:
Registry location: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework
DWORD (32-bit) Value name: LegacyWPADSupport
Value data: 0