? DRIVESPACE('F') &&If return -1 drive "F" it's not mapped

>Is there any way of ensuring a network connection is mapped before I try to append a record to a table on that drive?
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>I have an app, and although it doesn't error the user is complaining that some records do not seem to have saved.
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>I would assume that if I tried to append to a file that could not be accessed it would give me an error.
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>I would like to call some code to remap the drive before I append just to cover myself.
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>Any help would be much appreciated.