I have moved your thread to the correct forum for this question.
Webstyle was not written to run on Windows Vista or Windows 7 which means it is unaware of the new requirements & conditions of those OSes for software which has to write to the registry during setup and then once on first run.
The application link libraries ( .dll files) must be registered (keys written to the registry) for the software to work.
In short, remove Webstyle and then re run the setup following the suggestions described here.
Bookmarks