I really need help on this because I lost my hopes to correct the problem.
I am using Office Communications Server 64bit libraries. There are 3 dlls I use in the pro
Try setting Copy Local in solution explorer for those assemblies and make sure they are being dropped into the folder's specified in the binding log.
Also, they were probably built using the V2 CLR. If they were, you'll have to enable Mixed Mode binding by adding this to your web/app config