XGEN: User32.dll Error Occurs When Trying to Start An Exchange Component

• Microsoft Exchange Server, versions 4.0, 5.0, 5.5

SYMPTOMS

When you attempt to start an Exchange service, you may receive a pop-up dialog box with the following content:

<ServiceName> - DLL initialization failure Initialization of the dynamic
link library c:\winnt\system32\user32.dll failed. The process is
terminating abnormally.

CAUSE

This can be caused by the wrong version of User32.dll in the location stated in the pop-up dialog.

WORKAROUND

After you confirm what version of Windows NT is installed on the server and what service packs have been applied, check the time and date stamps on User32.dll to confirm that the right version is installed.

If you have confirmed that you are using the correct User32.dll, please refer to the following article in the Microsoft Knowledge Base for another possible resolution:

Q142676 Overcoming User32.dll Initialization Failure Errors

Additional query words: user32.dll initialization

Keywords : XGEN exc4 exc5 exc55
Version : winnt:4.0,5.0,5.5
Platform : winnt
Issue type : kbprb