The information in this article applies to:
Compatibility mode provides an environment for running programs that more closely reflects the behavior of either Microsoft Windows 95 or Microsoft Windows NT 4.0. These modes resolve several of the most common issues that prevent older programs from working correctly with Windows 2000. Programs that experience issues after migration may benefit from being started in one of these compatibility environments.
The Compatibility-mode technology is currently used by Windows 2000 to ensure built-in compatibility for many popular programs. With Windows 2000 Service Pack 2 (SP2) and Service Pack 3 (SP3), administrators can manually enable and use this technology to provide solutions for their own programs. Only administrators can enable this technology for users.
Enable Compatibility Mode Properties
The Compatibility-mode technology is not exposed by default. To enable an interface so that you can use this technology for your programs after you apply Windows 2000 SP2 or SP3:
Administrators can use a program shortcut to set the compatibility mode for a target program. This requires that the Compatibility-mode properties be correctly installed and registered on the computer by using the previous steps. To enable Compatibility mode by using a program shortcut:
Because you enable Compatibility mode independent of the Windows 2000 SP2 or SP3 installation process, removing Windows 2000 SP2 or SP3 does not remove Compatibility mode. To remove Compatibility mode:
regsvr32 /u %systemroot%\apppatch\slayerui.dll
Administrators can enable and disable the mechanism that improves compatibility with older platforms (also known as Shim Technology) by using the Compatibility Layer Tab. After a shortcut has a Compatibility Layer enabled, the user also runs the program under the compatibility layer, however, the user cannot see the settings in the Compatibility Layer Tab.
How to Enable Application Compatibility-Mode Technology in Windows 2000 Server SP3
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