In Windows, how can I find the version number and product ID number of an application?

To find the version number for most Windows applications, launch the application, go to the menu bar at the top of the window, and click Help. In the resulting menu, click About X, where X is the name of the application. For example, if you wanted to look up the version number of Netscape 7, then you would click Help on the menu and then About Netscape 7. A dialog box will appear with the version number, and possibly other information such as a product ID code, licensing information, and service pack release.

Also see:

• In Windows, how can I tell which service packs are installed?