There's a Compatibility Mode update available from the Windows Update site, which adds not only the Compatibility tab to *.exe's...but also program shortcuts. Although Compatibility Mode isn't exposed by default in W2K, the interface can still be enabled by using the following method (assuming at least SP2 is installed). This will only work on program shortcuts and not *.exe's...
Click Start | Run | Type the following command, and then click OK, where %SystemRoot% is the drive and folder in which Windows is installed (normally C:\Winnt):
regsvr32 %systemroot%\apppatch\slayerui.dll
To disable Compatibility Mode, follow the same instructions as above except type the following in the Run box...
regsvr32 /u %systemroot%\apppatch\slayerui.dll
...You'll need to be logged on as Administrator in order to enable or disable Compatibility Mode.