admin$ share doesn't work on xp machines

I have a workgroup of few PC's(all of them are VMWare 2.0 clients with
Computer Names XP1,XP2,...).
I can't open a remote admin$ share in any of the PC's. I searched the
Internet for a clue but nothing helps.
Some details:
I enables remote access on the remote XP machine with a user Administrator
and password Ab123456.
When trying to get to the \\XP1 share it works fine.
When trying to open \\XP1\admin$ I get a dialog box for user and password
but using Administrator (or XP1\Administrator) fials with error message
Loggon Unsusccefull.
On the other hand trying from XP1 to open \\XP1\admin$ works fine.
Rebooting XP1 does nothing for the problem.
Can someone help please?
Regards
Mandy

On 8/10/2010 4:22 AM, Mandy wrote:
I have a workgroup of few PC's(all of them are VMWare 2.0 clients with
Computer Names XP1,XP2,...).
I can't open a remote admin$ share in any of the PC's. I searched the
Internet for a clue but nothing helps.
Some details:
I enables remote access on the remote XP machine with a user Administrator
and password Ab123456.
When trying to get to the \\XP1 share it works fine.
When trying to open \\XP1\admin$ I get a dialog box for user and password
but using Administrator (or XP1\Administrator) fials with error message
Loggon Unsusccefull.
On the other hand trying from XP1 to open \\XP1\admin$ works fine.
Rebooting XP1 does nothing for the problem.
Can someone help please?

Try he http://support.microsoft.com/kb/842715

John