I'm currently testing msnp15 with the new token patch in revision 23800 of Adium 1.3svn and I noticed today that I can't open a message window for offline msn contacts. It's no problem to send offline messages to contacts that I already have opened a window for while they were online. I'm pretty sure this is by design since msnp9 doesn't support offline messages and that I'm able to open a message window for offline icq contacts. I have tried looking around in the source code for where it's defined but since I'm not familiar with Adium's source code I haven't been able to find it.
I would appreciate it if anybody could point me in the right direction or perhaps do something similar to the define NEW_MSN in ESPurpleMSNAccount.h but for offline msn contacts.