Gaining access permission control in remote PC

i just want to gain access in remote PC using shared file in that PC. i tried the following in run option \\RemotePCName\SharedFolder$ this is supposed to ask admin user ID and password instead it is giving this error "\\RemotePCName\SharedFolder$" is not accessible you might not have permission to use this network resource. any help will be great. thank you all.........

let me know the OS of the computer:

you can follow the following steps:-

Step 1:get the ip address of both the computers
make sure they are in the same work group and has different computer name.
step 2:make sure they are able to ping each other , if not disable the firewall
step 3:share the drive or the folder that you wants to share, by right clicking on it and click on properties and allow permission for everyone.
step 4:type in the shared name
step 5:you can disable password protected in vista computer,if it is a vista computer.
step 6:from the other computer go to network->view work group computers and click on the desired computer , you should be able to see the shared folder or drive.

the two computer should be able to ping each other .
if not it may be a firewall issue.