Application of force to use specific ports

Hi all
I have an application that uses random ports.  This could be good behind a typical personal router, but is not possible with the current implementation.  The program is an application of video conferencing with Polycom collaboration, and the app is telepresence m100.
The release notes for m100 indicate a few random ports are used for some protocols.  (See page 21)  Our network firewall device requires a game port assignment and our security protocols do not allow an open machine.  We would also like to use this m100 of telepresence on multiple machines, so a DMZ is not an option.  The application does not allow the user to select specific ports.  Request support with Polycom has been less then helpful (answer: it uses a random port).

So here I wonder if there is a way on XP or 7 to force an application to use ports or range of ports, perhaps 4-5 assigned ports, not 65535.  The nature of the beast requires several ports open, not one.  Also, remote machines will have the same configs, so one of these machines could initiate/receive calls with all the others.

John

Questions of this nature are better asked on Technet

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