We didn't open the old version.
In this version,you can use LogFileManager to create a log file path and use the path to create a Log.Then use the Log.WriteInformation that the message were wrote in that file!
The library is running on .NET Framework 4.0.
Secure P2P Instant Messenger running on .NET Framework 2.0. Uses server to store user information (user name, password, email address, friends list, log in state, IP address) in encrypted form. Uses custom designed symmetric encryption algorithm.