[Symptom]
Open Mainconsole then this message
"The procedure entry point..."shows up.

[Root cause]
Mainconsole server execute the .dll file version which is the different version from Mainconsole server. It might cause by below reasons:
1. User copied the different version .dll file into Mainconsole folder.
2. User upgraded patch for Mainconsole server only but didn't upgrade client patch as well.
[Solution]
Remove Mainconsole then install it again.