WFWG 3.11 Does Not Pass Requests to Novell DOSNP.EXE

• Microsoft Windows for Workgroups version 3.11

The following article contains information on the use of Windows for Workgroups with third-party products or configurations that have not been tested and are not supported by Microsoft.

If the steps or procedures described in this article do not function properly, contact the manufacturer of the third-party product for more information or use a supported configuration.

SYMPTOMS

Novell NetWare users implementing Novell Named Pipes Extender for DOS (DOSNP.EXE) encounter problems with Windows for Workgroups 3.11 because Windows for Workgroups does not allow INT 21 requests related to named pipes to be passed down to this DOS terminate-and-stay-resident (TSR) program. This problem occurs regardless of whether the Windows for Workgroups 3.11 network configuration is set up for the monolithic IPX or the Open Datalink Interface (ODI) implementation of the IPX protocol.

RESOLUTION

To allow this TSR program to work under Windows for Workgroups 3.11:

1. In Windows for Workgroups Network Setup, choose support for the Novell NetWare network only.

2. In Control Panel, disable 32-bit file access.

3. Remove the DEVICE=IFSHLP.SYS from the CONFIG.SYS file and the DEVICE=IFSMGR.386 from the SYSTEM.INI file [386Enh] section.

MORE INFORMATION

The device driver IFSHLP.SYS is the Windows for Workgroups 3.11 Installable File System real-mode component. The device driver IFSMGR.386 is the Windows for Workgroups virtual device driver (VxD) which is the Installable File System Manager. It passes all INT 21 calls to the appropriate Installable File System (VFAT.386, VREDIR.386, or MS-DOS).

Removing these components is not supported by Microsoft and eliminates the possibility for enabling the Windows for Workgroups 3.11 32-bit file access performance feature.

Also, you have connectivity to the Novell network only; you do not have the peer-to-peer Windows for Workgroups network.

The Novell NetWare products included here are manufactured by Novell, Inc., a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.