Outbound connection on port 7001 (UDP) by msnmsgr.exe?

[iCE]

When I open MSN Messenger, my firewall reports an outbound connection on port 7001 (UDP) by msnmsgr.exe. I have been unable to find out what msnmsgr.exe uses this connection for. MSN Messenger seems to work fine if I block the connection. Does anyone here know what it’s used for?

 

[iss]

When you block this does the ad box(on the bottom) in messenger go blank? my first thought is that it is connecting to MSN for the ad box.

 

[Phantasm66]

The port is a registered port,

afs3-callback 7001/udp callbacks to cache managers

according to here.

The situation as far as I am aware is this:

The callback is needed so you can know when your cached file is updated. The point is that you are absolutely sure when your cache-file is up-to-date. The files are cached locally even when they are not used and they stay in the cache until they get garbage-collected (because of full cache) or until you get a callback.

Although it may appear on the surface that MSN Messanger is working properly with this port blocked, my guess would be that due to the nature of what I have posted above, there IS the possbility that you will have an out of date cache with this program and something COULD go wrong.

I would allow the program to access the port.

 

[iCE]

No, the advertisement is still there. I think the advertisement uses TCP port 80 HTTP (Hypertext Transfer Protocol).

 

[iss]

I used a msn ad killer program on mine cause I found them annoying.

 

[Phantasm66]

Nope, I don't think the ad is that port, if you bother to read my post.

 

[Refwhett]

Building up on the msmsg port subject.
What port does the program use whne connecting to other computer for video and voice chats?

 

[Tribal-Phoenix]

i agree with phantasm i think it is like an updater for msn for ex when a person comes online it updates the cashe.