Windows 7 Ultimate Help

Hi I am using W7 Ultimate SP0 64-Bit en-US (Build 6.1.7600.16385) I have installed .NET framework 4.0 and some programs that require it work but then some programs when I try to run them I get the ".Net Initialization Error" box saying "Unable to find a version of the runtime to run this application."

Is there a packaged .NET framework 4.0 which contains all files needed whether they are supposed to be on the PC already or not so that when installed there are no files/dependencies missing whatsoever even if from previous versions of .NET framework all files whether from sys32 folder, winsys or whatever so I won't get the dreaded ".NET Initialization Error"?

Another question I have is if you do get .NET error is there some log file or otherwise that says exactly what is missing or what file I need on my PC so that it would work regardless of if it installs with the .NET package?

Sorry for the long post I just wish these issues were simpler!
Thank You!

I've read .NET framework 4.5 is better than .NET framework 4.0 if there are issues with 4.0...
Here is a MS page with .NET downloads:
Download Microsoft .NET Framework 4.5 from Official Microsoft Download Centre

You could also ask for this thread to be moved to the Windows Updates and & Activation forum.
The experts there might be able to give you better help.
Here is one thread I found about .NET framework 4.0 issues you can look at...
NET Framework 4 Fatal Error