Windows 2003 R2 Server and DCOM

We have an application running on our LAN which uses DCOM. I have set the default DCOM permissions for users to run DCOM from the server- but the Windows firewall seems to be stopping the application from running. The DCOM handshake is done on port 135 (shown as epmap on netstat) and needs to transfer to a port range of 5000-6000. I have tried to enable port 135 on the firewall but this does not work. However, if I shut down the windows firewall the application works. How do I get this app to run on a defined port setting of 5000-6000? handshaking on port 135 with the windows firewall enabled?
SNHeadAsked:
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Jay_Jay70Commented:
i will just throw in a comment that windows firewall is useless. Any standard DSL router has a base model firewall that far outweighs windows firewall, i would disable the damn thing, it is nothing but a nuisance

otherwise this might help
http://www.windowsecurity.com/articles/Customizing-Windows-Firewall.html
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