There could be some matters arround Execute() and NoVarsInStrings.

Could you try the following function, whitch turns on VarsInStrings before Execute() and then restores it to its previous state.

Code:

Function DRVMAP()
   Dim $rc,$data,$section,$grp,$i,$drive,$resource,$NoVarsInStrings
   $data = EnumINI(@LDrive + '\NewScript\DRVMAP.ini')
   If Not @Error
      For Each $section In $data
         $grp = Split($section[0],',')
         If InGroup($grp)
            For $i = 1 To UBound($section)
               $drive = $section[$i][0] + ':'
               $resource = $section[$i][1]
               $NoVarsInStrings = SetOption('NoVarsInStrings','Off') 
               $rc = Execute('$$resource=$resource')
               $rc = SetOption('NoVarsInStrings',$NoVarsInStrings) ; Set NoVarsInStrings to previous state
               Use $drive $resource
            Next
         EndIf
      Next
   EndIf
EndFunction


-Erik