Error Message: Unexpected DOS Error 11

ID: Q166071

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 versions 3.5, 3.51, 4.0
Microsoft Windows NT Server versions 3.5, 3.51, 4.0

SYMPTOMS

When you try to run a program in Windows NT, you may receive the following error message:

Unexpected DOS error 11

CAUSE

Using the "NET HELPMSG 11" command returns the following information:


   An attempt was made to load a program with an incorrect format.

This type of error message can be caused by trying to install the wrong Service Pack for the version of Windows NT running on the computer. (For example, trying to install a Service Pack for Windows NT 3.51 on a Windows NT 3.5-based computer.)

RESOLUTION

Check the build or version of Windows NT running on the computer and run the correct version of the program for the version of Windows NT you are using.

For additional information, see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: Q140642
TITLE : Err Msg: Unexpected DOS Error 11 Using Server Tools

Additional query words: remote 4.00

Keywords : kbenv kberrmsg nt32ap
Version : 3.1 3.5 3.51 4.0
Platform : IDEAS winnt
Issue type :