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ASTUTIL.TEC
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1990-08-30
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ID:AU SuperSpool, FastDrive with QEXT.SYS
Quarterdeck Technical Note
by Stan Young
Q: How do I use AST's Superspool and FastDrive utilities with QEXT.SYS
AST's SuperSpool and FastDrive utilities can be run with Quarterdeck's
QEXT.SYS driver, but require some special setup parameters since the
default for these utilities is to load at the 1 megabyte address, which is
where QEXT.SYS must load.
To have it work properly, you must have QEXT.SYS invoked in your
CONFIG.SYS file before loading FASTDRIVE. Naturally, consult the DESQview
manual (Appendix B) concerning setting up some real extended memory in
which QEXT.SYS will be loaded. The AST utilities can be loaded either in
the remaining real extended memory or in "emulated" extended memory created
by AST's REX.SYS driver. QEXT.SYS, as noted in the manual, can only use
REAL extended memory.
As noted, the AST utilities default to load themselves at a 1 megabyte
address and therefore, if allowed to load with the defaults, will overwrite
QEXT.SYS and disable both QEXT and themselves. In order to have them load
above QEXT, it is necessary to tell them with a command line parameter
where to load. If you have difficulty with this, please consult the AST
SuperPac software manual, but the basic method for telling the AST software
where to load is as follows:
Generally, under the default to load the utility in extended memory, you
put "/EXTM" as a parameter on the command line. As noted, this will load
it at 1 meg. If you want to be sure they don't load on top of QEXT, you
must enter the parameter as "/EXTM=0,1088." This tells the utility to load
at a 1088K address. Since 1 megabyte is 1024K, setting the starting
address to 1088 leaves the 64K that QEXT.SYS uses free.
If you use both FASTDISK and SUPERSPL, you can use the "/EXTM=0,1088"
parameter for both of them. This would appear to be a conflict; however,
while these utilities do not detect QEXT or other VDISK-like utilities,
they do detect each other and will not overwrite each other.
Note: The above setup information also applies to the AST's SuperDrive
utility.
Copyright (C) 1990 by Quarterdeck Office Systems
* * * E N D O F F I L E * * *