Hi Raymond,
Try this code:
? GetUNC('Z')
FUNCTION GetUNC(cDrvLetter)
#DEFINE DRIVE_REMOTE 4
DECLARE INTEGER GetDriveType IN kernel32 STRING RootPath
DECLARE INTEGER WNetGetConnection IN mpr;
STRING lpLocalName, STRING @lpRemoteName, INTEGER @lpnLen
LOCAL nDrvType, cUnc, nBufsize, cBuff
nDrvType = GetDriveType(cDrvLetter + ":\")
cUnc = ''
IF nDrvType = DRIVE_REMOTE
nBufsize = 250
cBuff = Repli(Chr(0), nBufsize)
IF WNetGetConnection(cDrvLetter+':', @cBuff, @nBufsize) = 0
cUnc = LEFT(cBuff, nBufsize)
ENDIF
ENDIF
RETURN cUnc
