"net use" --> err 87

NTFSD
1

Hi,

I have a network FSD. When I use the “net” command to map a given volume
into a drive letter, I get the infamous err 87 (“parameter is incorrect”).

For example, suppose my FSD mounts volume \Srv\Vol and I do
net use M: \srv\vol

When the “net” command runs, my NP DLL’s NPGetCaps is called several times
(NET_TYPE, USER, CONNECTION, ENUMERATION, ADMIN, and DIALOG) No other NP
DLL function is called, and no IRP is sent to the FSD. NPGetCaps seems to
return all the right bits, although maybe it does not…

I know this is a very general question, but I was wondering if anyone had
this problem before and had solved it.

thanks
Chuck Shavir

2

Try shimming the Microsoft provider and see exactly what its NPGetCaps()
returns for each call. This should provide a good clue.

good luck,
Marc Sherman

-----Original Message-----
From: xxxxx@MagicSquare.com [mailto:xxxxx@MagicSquare.com]
Sent: Wednesday, February 27, 2002 12:16 AM
To: File Systems Developers
Subject: [ntfsd] “net use” –> err 87

Hi,

I have a network FSD. When I use the “net” command to map a
given volume
into a drive letter, I get the infamous err 87 (“parameter is
incorrect”).

For example, suppose my FSD mounts volume \Srv\Vol and I do
net use M: \srv\vol

When the “net” command runs, my NP DLL’s NPGetCaps is called
several times
(NET_TYPE, USER, CONNECTION, ENUMERATION, ADMIN, and DIALOG)
No other NP
DLL function is called, and no IRP is sent to the FSD.
NPGetCaps seems to
return all the right bits, although maybe it does not…

I know this is a very general question, but I was wondering
if anyone had
this problem before and had solved it.

thanks
Chuck Shavir

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