I ran into something similar recently. Two WinXP machines, and one Win2K, all attached to a router, within the same workgroup. Both WinXP systems could see and access each other, and the Win2K system could access both WinXP computers. But neither WinXP system could access the Win2K computer. (Which was partially due to the permission level of the default shares assigned to each hard drive partition.)
First, I added a new administrative account to the Win2K system. Then I deleted the current network shares for each hard drive partition I wished to access ... created new shares, and added new permissions. Under comments for each new share, I typed "default share." The permissions for each share included the regular administrative account, the normal user account used to log into the system, and the newly created administrative account. Otherwise, I'd have been locked out of the Win2k system's network shares from within the Win2K GUI! Just adding Administrator(s) wasn't enough; each account that must have permission has to be added one by one.
Then I added the NetBEUI protocol to the LAN connection for each system, and after rebooting each computer, was able to type in a user name and password from each WinXP machine to access the Win2K system.
WinXP doesn't come with a MS supported version of NetBEUI already installed, so you have to get the files off the WinXP CD, and add them manually, so the protocol is available.
<A HREF="http://support.microsoft.com/default.aspx?kbid=301041" target="_new">HOW TO: Install NetBEUI on Windows XP</A>
Note that a user name must be the machine name + the user name, as in Billscomputer\username.
That's all there was to it.
Toey
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