Shared selective folder on Xp Pro

[beltijs]

hi!
i've this problem. A network with 3(A,B,C) machines, 2 of them (A,B) wants to share
a folder without sharing with the third one (C). Ok, i've read a lot of posted maded to this
forum, but i found a problem that i can't solve.
I create in all three machines all users account of the network and i give each
shared folder the corresponding permission, and it works fine. What i notes is that if in machine A
the user C logs in (he could do it because i create his account in machine A)
he can access to that folder he didnt has access trought the network.
i've tried:
- Disable user account from machine A , result: He can access all shared folders on machine A
trought the network
- Change the user password on machine A so he can't logging directly in the machine, result:
he cant even access the share folders on machine A

any sugestions?

 

[bcastner]

If users on A, B were created on C, but NO user Accounts wwere created on A, C they issue would be resolved.

C only needs for security purposes the user accounts of A, B; there is no need to add the user accounts of C to A,B.

 

[beltijs]

i think i have to create user C in A and B, because there is one folder in each machine that is shared for everyone (including C), and other folder in A that is only shared with B.