We have a .net application which is written to communicate with ACCPAC 5.2. We use AccpacCOMAPI to connect to ACCPAC. Our problem is we are not always able to establish connection, sometimes we can, sometimes we cannot. We tried to trace the problem and found it stops at session initialization (AccpacSession.Init) and the message is "Session is not initialized". To fix this problem, we'd need to restart the .net application pool. Does anybody know how to fix the problem? Any reply will be greatly appreciated. Thanks.