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how to avoid winoldapp & FCB unavaliable?

how to avoid winoldapp & FCB unavaliable?

how to avoid winoldapp & FCB unavaliable?

I am writing a DOS program in BC++ V5 for win95. Two questions:

1. When running my program from bc5, how do I stop win95 from
creating the app "Winoldapp" when I exit my program and return to

2. Suddenly, when quitting my program, I am getting the dos error
"FCB unavaliable". I have searched my program and am unable to find
the cause. Generally it happens after I have used outportb or inportb
to access 0x200 (an I/O card) however, this did not cause any problems
a week ago. I am also not doing any new disk access since the problem
has begun. ANY ideas on what would cause this error would be greatly

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