I'm trying to map two drives from a W2003-Server from Win7 with the following batch-file:

net use m: /delete
net use u: /delete
net use m: \\{IP}\srvE /user:{sameIP}\Administrator {pswd}/persistent:yes
net use u: \\{same IP}\DATEN /user:{sameIP}\Administrator {pswd}/persistent:yes

The batch executes w/o errors and both drives are visible in eplorer afterwards and clicking on M opens the drive and everything is fine. But when clicking on U: I get an error "Microsoft Windows Network: local device name already in use".

I used a different drive letter before, have also done net use * /deletebefore and also deleted the registry-key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2 as suggested here - but am still struggling with that issue. (Also logged off, rebooted etc.)

1 Answer 1


Oh, silly me - I found the answer while checking what I was about to write - but maybe it helps someone else, so I'm sharing it here: although "Administrator" suggests that I was able to do what I wanted, I was not: I had no permissions on that share. And the funny thing is, that after fixing the permissions, I am even able to access that share as N:\ and U:\ simultaneously - there is great logic behind "device name in use"! (not)... ;)

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