Originally posted by Jefftopia

Also, releived that you share beleif that this is actually not an error relating to common runtime language (Dotnetfx.exe) on user's machine.
You will get a problem there if the framework (dotnetfx) isn't installed on the user's machine, but from your post the problem occurs when you try to build the solution on your machine, which would have the framework since you have VS.Net installed.