[Pidgin] #3617: doesn't work properly if mdnsresonder is installed in a non-standard location

[Pidgin]

#3617: doesn't work properly if mdnsresonder is installed in a non-standard
location
------------------------------+---------------------------------------------
  Reporter:  blaydman         |       Owner:  datallah
      Type:  defect           |      Status:  new     
  Priority:  minor            |   Milestone:          
 Component:  winpidgin (gtk)  |     Version:  2.2.1   
Resolution:                   |    Keywords:  bonjour 
   Pending:  0                |  
------------------------------+---------------------------------------------
Comment (by datallah):

 I've done some further investigation and testing on this.

 It turns out that the presence is being advertised successfully with the
 standalone mDNSResponder and it is receiving notifications of other
 clients, however, it can't perform the DNS lookup successfully for the
 presence "remotehost.local" name.

 {{{
 (10:37:47) dnsquery: Performing DNS lookup for rutherfordium.local.
 (10:37:47) dnsquery: Error resolving rutherfordium.local.: 11001
 (10:37:47) bonjour: host resolution - callback error.
 (10:37:48) bonjour: service advertisement - callback.
 }}}

 It turns out that resolving such things is the job of `mdnsNSP.dll`,
 however, it needs to be
 [http://msdn.microsoft.com/library/default.asp?url=/library/en-
 us/winsock/winsock/name_space_service_providers_2.asp registered with
 Windows] before it can do so.

 Apple provides a tool that can be used to do this (I'll attach a binary to
 this ticket), the syntax for doing follows:
 {{{
 NSPTool -install "mdnsNSP" "B600E6E9-553B-4a19-8696-335E5C896153"
 "C:\Program Files\Pidgin\mdnsNSP.dll"
 }}}

 When you're done, you need to unregister mdnsNSP:
 {{{
 NSPTool -remove "B600E6E9-553B-4a19-8696-335E5C896153"
 }}}

 After following these steps, Bonjour seems to work correctly.

-- 
Ticket URL: <http://developer.pidgin.im/ticket/3617#comment:4>
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