WINDIR Environment Variable Set When Running Windows

ID: Q65662

The information in this article applies to:

Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11

Microsoft Windows version 3.0 sets the WINDIR environment variable whenever any program, including a MS-DOS program, is run under it. WINDIR is set to the directory where WIN.COM is found. This is usually C:\WINDOWS. The WINDIR variable is removed from the MS-DOS environment when you exit Windows.

As a result, MS-DOS applications can detect whether they are running under Windows. If WINDIR is set to a valid name, the application is running under Windows.

Additional query words: 3.00 3.0 3.0a 3.00a 3.1 3.10 3.11

Keywords :
Version : WINDOWS:3.0,3.0a,3.1,3.11
Platform : WINDOWS
Issue type :