We just recently had a customer report an issue with using a Vista machine
sharing DBISAM tables with another Vista machine, and have found out that
there is a problem with using a Vista machine as a host for sharing DBISAM
or ElevateDB tables with other Vista machines due to a bug in the SMB2
protocol in the Vista OS.

For now, we recommend that you do *not* deploy any applications in such an
environment until MS comes up with an official fix.   The indications are
that a fix will be available with the first Vista service pack.  There is an
official hotfix available, but you have to call MS to get it and it isn't
publicly available.

You can find information on the problem here:

http://forums.microsoft.com/msdn/showpost.aspx?postid=1259708&siteid=1&sb=0&d=1&at=7&ft=11&tf=0&pageid=0

The problem only occurs with a Vista <--> Vista setup that can use SMB2.
With any other combination of OS's, such as XP <--> Vista  or Vista <-->
2000, the problem doesn't occur because one of the participating OS's can
only use the SMB file-sharing protocol, not the SMB2 file-sharing protocol.

--
Tim Young
Elevate Software
www.elevatesoft.com