Quarterdeck's QEMM May Require WINSTLTH.VXD File

• Microsoft Windows operating systems versions 3.0, 3.0a, 3.1, 3.11

SYMPTOMS

When you use QEMM's Stealth option with Windows, you may receive the following error message when starting Windows in 386 enhanced mode:

   Cannot find a device file that may be needed to run Windows
   in 386 enhanced mode. You need to run Setup again.

      C:\WINSTLTH.VXD

   Press any key to continue.

CAUSE

Windows requires this file to transfer memory control when Windows loads. This is not a Windows file, so running Setup will have no affect.

RESOLUTION

The WINSTLTH.VXD file should be copied into the QEMM directory when QEMM386 is installed. The above error can occur when QEMM386.SYS is moved to another directory without the WINSTLTH.VXD file, when the MS-DOS path has been changed, or when Windows has been installed on a network that remaps the path.

To correct the problem, the WINSTLTH.VXD file can be moved to either the same directory as QEMM386.SYS, or to the Windows \SYSTEM subdirectory. If it is a network installation, the file may also be in the user's Windows directory. If this fails, copy the file into another directory that is in the MS-DOS path.

For more detailed information on configuring QEMM, contact Quarterdeck technical support.

QEMM is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.