Lots of apps check the operating system during installation to make sure the version of Windows is supported. This is designed to prevent the user from installing it in an old version of Windows that doesn’t have the necessary files or features. Sometimes, however, it’ll also block a new version of Windows–such as Windows Vista.
Fortunately, you can configure a program to run in compatibility mode, which causes Windows Vista to lie about the version of Windows. To trick a program (usually a Setup file) into thinking you’ve got Windows XP, follow these steps:
1. Right-click the program and then click Properties.
2. Click the Compatibility tab.
3. Select the Run this program in compatibility mode for check box. Then, select Windows XP (Service Pack 2) from the list.
4. Select the Run this program as an administrator check box (just to help further reduce compatibility problems).
4. Click OK.
Now, re-run the program. It should work this time.