I've had lots of problems getting my program to run for my customers. Had to fix lots of errors, managed to get past most of them, but now I have a new problem. About 80% of my customers can run the program from my webpage link, but some are reporting the following error.

A failure occurred attempting to install the .NET Framework 4 Full."

The following components were not installed:
- Microsoft Visual Basic PowerPacks 10.0

The following components failed to install:
- Microsoft .NET Framework 4 (x86 and x64)

I'm using VB.net Express 2010. I've always found the language easy to use but distributing never seems to work. My program doesn't have any libraries or dll's, it's just basic controls and is quite a small program. I would have thought the basic prerequisites would be enough, but apparently not.

Oddly, I've set my program to run under .NET 3.5, so not sure why it's asking for the .NET Framework 4.