PCSupport 2.1, MEM /C, and Enhanced Mode Windows 3.0 (75230)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0
This article was previously published under Q75230
You may encounter problems using PCSupport 2.1 (a token ring router)
with the MS-DOS version 5.0 MEM command when shelling out of enhanced
mode Windows 3.0. When typing the MEM /C command, the machine will
display the requested information, then hang. Performing MEM /C from
standard or real mode Windows will not cause a system hang.
This problem occurs because of a conflict between Windows enhanced
mode memory allocation and the token ring card being used. The MEM
command will function normally from enhanced mode Windows if
EMM386.EXE is loaded in the CONFIG.SYS file and the token ring card's
address is excluded using the X= parameter. EMM386.EXE should be
loaded before the token ring drivers.
Note that this problem will occur even if EMM386.EXE is NOT loaded.
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