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melling@cs.psu.edu (Michael D Mellinger) writes:


>Is there a way to avoid the "Insert disk in B drive message..." when I
>change the A drive to B from within my MS C(6.0) program on a single
>floppy system?  Right now it always prompts the user to insert a disk
>into drive B and to hit RETURN even if there is already a disk in the
>drive.

I suspect NOT as DOS always thinks (and makes it look like) there are 2 floppy
disks on a machine with only one real physical drive. I'm not sure if there
is a way to detect if only one floppy or two are available (system config.
byte / and interrupt (?? int 11h) spring to mind as possabilities. From memory
there is a byte or two that tell how many drives are attached), although
you would have to check these and then write you program to (itself) do the 
redirecting of all requests to drive B to drive A (ie: change the filename's
that you open)...

Hope this helps some...

Trevor
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Trevor          alias  <**<TOMCAT>**>

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