In Windows 7 there is a built in program called Program Compatibility Assistant.  It is designed to detect known compatibility issues in older programs.  However, when you are an administrator on a computer and you are trying to get work done quickly the pop-up can get annoying.  In order to disable to pop-up please perform the following steps:

1. Click on Start and type in services.msc, hit enter
2. Scroll down the list in the window that appears until you see program compatibility assistant service
3. Highlight the service
4. Right click on it and select properties
5. Next to startup type, select disable
6. For service status, select stop
7. Hit apply
8. Hit OK

You are all done.