Map a Drive?

You could try the net use M: \\server\share.
When it works, you could try running it from a logon script.
Success will depend on how server the System Policy is.

You will have to specifically let me know what kind of policy restrictions have been placed on network neighborhood.

The answer to your question is both yes, and no. It depends on the policy restrictions. Another dependency is how you log on to the machine. If you log on using an Administrator account you should be able to do whatever you need. Just make sure you have the permissions on the server.

You can always use the "Map Network Drive" within Windows Explorer to map the correct drive. We lock out the Network Neighborhood Properties and still allow mapping of drives through that location

If the policies are done right then you can not map a drive. Except if you can get to a DOS prompt from another application. Some apps allow you to shell to DOS and that is virtually impossible to stop with a policy. I would also guess that they have curtailed editing the registry. If not then you can hard map a drive using the registry.

Best of luck. Remember your security is only as good as how ignorant your user is.