Err Msg: The Procedure Entry Point SUnMapLS_IP_EBP_8 Could...

• Microsoft Windows NT Workstation version 4.0
• Microsoft Windows NT Server version 4.0
• Microsoft Windows NT Server Enterprise Edition version 4.0

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

If you attempt to install the ATI Technologies 3D Rage video driver for Microsoft Windows 95 in Windows NT, you may receive the following error message:

   The drivers were not successfully installed. You may not have the
   required privilege to install a new driver.

   Atikey32.exe - Entry Point Not Found. The procedure entry point
   SUnMapLS_IP_EBP_8 could not be located in the dynamic link library
   KERNEL32.DLL.

CAUSE

The ATI Technologies 3D Rage video driver for Windows 95 is not compatible with Windows NT. Even though the ATI driver installation program cannot complete the video driver installation, an entry is created in the Run key in the registry.

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To resolve this problem, use the following steps:

1. Use Registry Editor to delete the AtiKey32 value in the following registry key:

         HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
   

2. Restart your computer.

MORE INFORMATION

You may want to contact ATI Technologies for information about obtaining a Windows NT 4.0 video driver for your ATI Technologies display adapter.

The third-party product discussed in this article is manufactured by a vendor independent of Microsoft; we make no warranty, implied or other- wise, regarding this product's performance or reliability.