dceExtErr - dce extension error

unitTblFullErr - unit table has no more entries

notOpenErr - Couldn't rd/wr/ctl/sts cause driver not opened

abortErr - IO call aborted by KillIO

dInstErr - DrvrInstall couldn't find driver in resources

dRemovErr - tried to remove an open driver

closErr - I/O System Errors

openErr - I/O System Errors

unitEmptyErr - I/O System Errors

badUnitErr - I/O System Errors

writErr - I/O System Errors

readErr - I/O System Errors

statusErr - I/O System Errors

controlErr - I/O System Errors