The Wilcom 9 is a fairly old program. This was initially designed to run on Windows 2000 or Windows XP. However, there are plenty on videos on YouTube that users install on Windows 7. You can try doing this by yourself. Regarding this problem, it's advised to install and run it using compatibility features. To do this, go to Start and type Run program. From there you should open the Run programs made for the previous Windows version utility. Make sure that you choose to install the application and run it in compatibility mode with Windows XP SP3. You should be able to install and run the program without any compatibility errors.