Windows 3.0 Enhanced Mode Virtual Machine and Fastopen, Share

Last reviewed: November 21, 1994
Article ID: Q64570

The information in this article applies to:

Microsoft Windows operating system versions 3.0, 3.0a, 3.1, 3.11
Microsoft Windows for Workgroups versions 3.1, 3.11

If you launch an MS-DOS command box (an MS-DOS virtual machine) under Microsoft Windows or Windows for Workgroups, you can't run FASTOPEN.EXE or SHARE.EXE. Even if you have not loaded the Fastopen program before running Windows, you receive a message that reports that Fastopen or Share has already been loaded.

The message telling you that Fastopen or Share has already been started is by design. The message was implemented to prevent Fastopen and Share from being started in a virtual machine because they can crash the system. This is because these utilities are all MS-DOS kernel extensions and MS-DOS and Windows are not set up to support loading MS-DOS kernel extensions in a virtual machine.

KBCategory: kbusage
KBSubcategory: win30 win31 wfw wfwg
Additional reference words: 3.00 3.0 3.0a 3.00a 3.10 3.11

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: November 21, 1994
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.