This is one of very hard problems that we haven't figured out yet. Have you installed Visual C++ or .NET and related libraries on your machine before? We found the problem happens on certain Windows developers' machines and so far we haven't been able to reproduce on our end and fix it.
We suspect that some system libraries installed are incompatible with YouWave's libraries which should run fine on a plain Windows system.
If you can provide some information about your system environment and setup, it may give us some clues.
Thanks,
YouWave Support