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AST RESEARCH TECHNICAL BULLETIN TB-0178 5-19-86
DESQVIEW COMPATIBILITY WITH VEMM SOFTWARE
Compatibility testing was conducted with DESQview and VEMM
software. VEMM (Virtual Expanded Memory Manager) developed by
Fort's Software, is a virtual memory software that uses demand
paging similar to that found in IBM mainframe operating systems.
It allows a user of a 2Mbyte EMS or EEMS board to get an
additional 6Mbytes of virtual memory. The following equipment
and softwares were used:
IBM PC/XT with 256Kbytes of memory and 10MB fixed disk
Model 5160
SixPakPremium/1000
PC-DOS 3.10
REMM 2.70
VEMM 1.0
DESQview 1.11
LOTUS 123 Release 2
SYMPHONY Release 1.1
VEMM requires a device driver to be loaded immediately after the
expanded memory manager device driver.
Device=VEMM.SYS D=32 M=40
Where "D" allocated the amount of 16KB demand pages for virtual
memory and "M" stands for the amount of expanded memory pages
available. Fort's Software claims that VEMM is compatible with
AST Research's RAMpage! board and the RAMpage! Expanded Memory
Manager. No problems were encountered when using this
combination with LOTUS 123 Release 2 or SYMPHONY 1.1. However,
attempts to enter DESQview causes DESQview to respond with the
following:
This version of DESQview requires:
1. An AST Enhanced Expanded memory board such as RAMpage!,
RAMpage! AT or SixPak Premium.
2. The line Device=REMM.SYS (at minimum) in the correct
order in your CONFIG.SYS file.
Exiting...
The reason this occurs is because DESQview talks directly to the
hardware. Possible solutions are being investigated.