I have 2 PCs on a LAN. My PC has fixed drives C:, F:, G: and H:. It also has mapping to drives on the other PC. They are W:, X:, Y: and Z:. The script below suggests that mapped drives are not included in DriveGetDrive('ALL'). #include "..\cDebug no maps.au3" Global $g_oCFF_WmiDriveInfo Global $all_Drives = DriveGetDrive('ALL') AddDisconnectedDriveLetters($all_Drives) _guidebug(@ScriptLineNumber,'ALL,NETWORK,all including mapped but disconnected',Dri