ID:MS Memory Size Field Explanation
Quarterdeck Technical Note #129
By Joe Wilder

The Memory Size (in K) option is a number set to allow DESQview the
opportunity to tell the user whether there is enough memory to open
a particular program.  That is to say, DESQview compares the number
in the Memory Size (in K) field to the Largest Available fields
(conventional and expanded) in Memory Status (which varies
according to which and how many programs are running). If the
Memory Size in K field is larger than BOTH conventional and
expanded Largest Available, DESQview puts a message on the screen
telling the user there is not enough memory to open that window. 
At this point DESQview hasn't even tried to open the program.  It's
just telling the user there's not enough memory according to the
user's specification to try to run the program.  This is useful to
prevent a program from attempting to run and then freeze for lack
of available memory.  Note: Programs running under DESQview require
between 9K - 14K extra memory for DESQview to manage their windows.

The Maximum Program Memory Size (in K) is the amount of memory
which DESQview will try to acquire for the particular program.  If
this number is higher than the Largest Available fields in memory
status (both conventional and expanded), DESQview will acquire
every last byte that is available in the partition it chooses to
use whether the program needs that much memory or not. 

If there is ample memory on the computer you might want to set 
Maximum Program Memory Size to some very high number that you 
know is beyond what is actually available.  This, of course, may 
not be desirable for people with machines with limited memory who 
are trying to multitask a couple of small programs.  They may 
want to try to squeeze multiple small programs into the first 
partition, which would be completely used up if the first 
program's Maximum Program Memory Size (in K) was set higher than 
necessary.

Maximum Expanded Memory Size (in K) is used to limit a program by 
the amount of expanded memory it may use.  If Maximum Expanded 
Memory Size is left blank, a program may take or leave as much 
expanded memory as it wants. If a number is put in this field, 
the program may take as much memory as it wants up to that number. 
If a program doesn't use all the Expanded memory allocated by this
field, the rest is still available for other uses. This is
especially useful for running programs that grab all of the
expanded memory available, leaving nothing for other uses.  This
convention is not to be confused with the usage of a blank with the
Maximum Program Memory Size (in K).  In the case of Maximum Program
Memory Size, a blank means this field will default to the number in
Program Memory Size (in K).

        Copyright (C) 1991 by Quarterdeck Office Systems
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