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AST RESEARCH TECHNICAL BULLETIN TB-0029 7-16-84
AST-PCNET PRINT SPOOLER
When using the AST-PCnet Print Spooler on a local PC (shared
printer attached), under certain conditions the SuperSpool
secondary control commands (/P, /C /S, etc.) will not work. The
specific conditions which cause this problem are as follows:
1. The system board switches are set for less memory than
is actually installed in the computer.
2. SuperSpool version 1.31, is resident in the area of
memory located above the setting of the system board
switches.
3. A SPLLINK version 1.00 command for local PCs has been
executed.
Under these conditions, attempting to use a SuperSpool secondary
command such as "SUPERSPL /P" will result in the following error
mesage:
Printer Specification Required.
ABORTING...
This is caused by the fact that SPLLINK has "stolen" SuperSpool's
INT 17 interrupt vector, coupled with the fact that SuperSpool is
unable to locate its own "footprint" in low memory. It therefore
assumes that it is not resident and rejects the secondary
command.
If the user`s system is configured with more memory than the
system switches indicate and he needs to use the SuperSpool
secondary commands, the SuperSpool "/DH" and/or "/DNC" options
should be used when invoking SuperSpool the first time. This
will restrict SuperSpool to using only the memory located below
the system board switches, and the problem will not occur.
Note that the problem described above does not occur if you are
not using SPLLINK.