Sounds like a NAP problem in sorts. But it is more likely to be security settings for user in properties for .exe files and other files needed by WB. You may have installed a firewall in the past and uninstalled it - but the regs where not converted back to the original state. Sometimes this can be a bad problem with both XP and esp. Vista! Vista also has a way of doing things with defender that if it does not operate correctly due to a shut down by like same enviroments as a firewall or anti-virus system or security suite. It has rights management problems unwritten from regs and they can not be rewritten correctly with just a reinstall of defender or said even the system restore at that.
NAP will effect even the ability of the explorer to download a file from a screen or window. This is caused by it changing rights management settings to be recognized by a system address file for it's own set of rights management and leaves OS settings unwritten. Thus blocking anything it does not recognize.
If I where you I would consider reinstalling the OS and be very careful what you install and how it is unistalled in the futeure. Trial and errors can be very frustrating and can even change your point of view on life itself sometimes!
Believe me it is not anything to do with Stardock software and you will find once you have clean installed everything. That you will be able to enjoy the OS much better. Plus once you have done this - get a good backup of your system so you can go back to fix a bad install of software or security system that has changed such system regs and settings. The which in most cases are not repairable or replaced.
SGT