i want to do the following :

i will give an example to make the issue clear

i have a network consists of 5 computers A , B , C , D , E

i have a folder named ( Movies ) simply i can share it over the network

i want to share this folder to be visible for computers A , B , C and invisible from D , E

also i want to specify the permissions for the visible computers as :

i want computer B to modify the folder and computer C to Read the folder only

all the computers on the same network and the same workgroup btw.

thnx in advance

Are these computers part of an Active Directory domain or a Workgroup? It may be difficult to delegate permissions the way you wish to without the computers being part of AD. Each computer in a Workgroup has its own local SAM database. You can't effectively add members from one computers SAM database to the other computers SAM database without AD.