Drive <drive> is invalid.
Cannot read from drive <drive>.
Write-protected disk in drive <drive>.
//INVALID xcInvalid //NOREAD xcNoRead //NOWRITE xcNoWrite //OKFUNC xcOkFunc //RETRYFUNC xcRetryFunc
<drive>
//func 
<drive>
//type N //valid inValid() //func 
//type N //valid inValid() //func 
<drive>
<drive>
PCDRV
NAMESLWRITST
PCATTREXP
SCDRV
NAMESLRETVAL
ESNDRVSTAT
XCATTREXP
XCINVALID
XCNOREAD
EXCNOWRITE
XCOKFUNC
XCRETRYFUNXLDONE
XNALERT
ZPARSE
ZDRVSTAT
ZALERT
XNOLDSTAT
XURETVAL
SNDRVSTAT
ZDRVSTAT
SCDRV
EWZMSGBOX
INVALID
c:\foxpak\shwrel\prg\
zchkdrv.fxp
c:\foxpak\shwrel\prg\zchkdrv.prg