Many hacks will not function properly with your operating system. There are many possible solutions which will allow you to run most Vista-incompatible programs and executables.
The simplest, most effective method is by disabling the UAC. I must warn you: disabling your UAC will remove the annoying security pop-ups that appear whenever you try running certain programs, but as a result, will leave your computer vulnerable. If you've chosen to continue, there are four methods to disable your UAC.