MTG: MAPI Unable to Run as a Windows NT Service

ID: Q170542

The information in this article applies to:

Microsoft Windows NT operating system version 3.1
Microsoft Windows NT Advanced Server version 3.1
Microsoft Windows NT Workstation version 3.5
Microsoft Windows NT Server version 3.5

SYMPTOMS

In Windows NT, if you attempt to start a program as a service that uses Windows NT Mail MAPI, the service fails to start the Mail spooler with MAPI error code 3 - MAPI_E_LOGIN_FAILURE.

CAUSE

MAPI for Windows NT does not support being started as a service.

WORKAROUND

Use one of these techniques to work around the problem:

Start the Mail client before starting the service.
Start the program from the command line instead of starting it as a service.

STATUS

Microsoft is researching this problem and will post new information in the Microsoft Knowledge Base as it becomes available.

Version           : WinNT:3.1,3.5
Platform          : winnt
Issue type        : kbbug

Last Reviewed: July 28, 1998