Lotus 3.0 Does Not Run Under Windows 3.0 in Enhanced Mode

 Last reviewed: November 23, 1994
Article ID: Q66729
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

SUMMARY

Lotus 1-2-3 version 3.0 does not run under Microsoft Windows or Microsoft Windows for Workgroups in 386 enhanced mode because Lotus uses a virtual control program interface (VCPI) compatible DOS extender rather than a DOS protected mode interface (DPMI) compatible DOS extender. The DPMI- compatible DOS extender is a newer industry standard that Windows and Windows for Workgroups use in 386 enhanced mode.

MORE INFORMATION

Lotus 1-2-3 3.0 uses a multitasking version of VCPI with a few other enhancements. Many software companies have already announced plans to support DPMI in future releases of their products. Check with your application's manufacturer to see if it supports Windows or Windows for Workgroups 3.x, DPMI, or both.

Lotus 1-2-3 3.0 should be run in standard mode with the following program information file (PIF) settings: 

    XMS Memory: KB Required - 2048
    XMS Memory: KB Limit    - 2048
NOTE: Windows for Workgroups 3.11 does not support standard mode.

You may want to increase the XMS Memory: KB Limit setting to include additional XMS memory when available.

Lotus 1-2-3 version 3.1 is reported to be a DPMI version and to run in 386 enhanced mode.

KBCategory: kb3rdparty
KBSubcategory: win30 win31 wfw wfwg winmem
Additional reference words: 3.00 3.00a 3.10 himem release

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Last reviewed: November 23, 1994
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