We have built a system with a Windows Server Standard 2012 as the host and two Windows 7 as the clients connected on a gigabit TCP/IP network.
On the host, a 64-bit MFC-based executable (app) and some small-size dependent DLL files are located and shared to Everyone with the full control right. The app can be run either on the host or on the client.
When the app is run the first time on any of the clients, it starts up quickly/normally - Taking ~1 second - with all the DLL files being loaded quickly.
However, the next run of the app, either on the host or on the other client, takes 3~4 min to start up. Process Explorer showed that each DLL file loading took 30~40 seconds.
It was also found that during the slow start up, if the first client is shut down, both the ongoing and the rest of the DLL loading finished quickly giving a sudden start up of the app.
BTW, the slow start up has never been seen on an old system with Server 2003 (host) and XP (clients).
Anyone with similar experience?
What would be the possible causes?
How to fix it?
Thanks a lot in advance.
Jeff