Weird error on Appllication log after installing Seciruty update.

Ever since I installed the security update that jsut came out i keep getting the error shown below.  CAn anyone please help.

Source: M1EMS
Category: none
Event ID: 0

30 Oct 2008 09:39:05,218 ERROR SinkMessaging.Client.MessageClient - Cannot connect to
System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it
   at System.Net.Sockets.Socket.Connect(IPAddress[] addresses, Int32 port)
   at System.Net.Sockets.Socket.Connect(String host, Int32 port)
   at SinkMessaging.Client.MessageClient.Connect(String server, Int32 port)
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did you apply the patch to both servers?  the target and the source?
It looks like the RPC on the server generating the error has been updated but the the target machine ( hasn't been updated
L_P_LoudanAuthor Commented:
No it was not applied to the other server.  We were only doing servers that had access from the outside world at first.
Try to apply the patch to that server and see if the problem goes away... this was an RPC (remote Procedure Call) patch and it looks like the fix needs to be on both sides

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We are having the same issue here on our Exchange Server 2007. Any ideas what would cause this? Which security update did you install? I dont recall installing any updates.

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