Firewall Exception for Windows DFS (Distributed File System)

In a Windows 2003 server, how may I make exception for Windows DFS (Distributed File System) in Firewall settings?
I have tried specifiying 135, 138 and 139 ports, and also tried dfscmd.exe, dfsgui.msc and dfssvc.exe, but none of these do the trick. Nor does File and Print services. Please help.

Both servers are obviously in domain but we cannot disable firewall for reasons too complex to mention. Thanks.

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David Johnson, CD, MVPOwnerCommented:
from an command prompt "dfsrdiag staticRPC" to set a static port. The default is 0 meaning dynamic ports

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AkulshAuthor Commented:

But after setting static port for RPC, how do I configure firewall of Win2003? Will this one port be enough? Thanks.
David Johnson, CD, MVPOwnerCommented:
Yes the one port will be enough with dynamic ports it uses any available port >1024
AkulshAuthor Commented:
I will test this on Monday. Thanks.
AkulshAuthor Commented:
Sorry I cannot properly test it, so cannot say it is Grade A solution.
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Windows Server 2003

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