"DotNet35FWWrapper - Cannot execute a program" error

If the following error comes up when trying to upload or download: DotNet35FWWrapper - Cannot execute a program. The command being executed was "C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Documents and Settings\Administrator\Local Settings\Temp\freocvs5.cmdline". The fix is to re-register ActiveX. Bring up the CMD screen and enter the following at the prompt: regsvr32 C:\AS\MSXml4.DLL