The image below shows the options you receive with TSScan server after the installation.
All settings can be applied on per user basis or if opened as Administrator to all user connecting to this server.
To revert your TSScan 3 to the previous TSScan protocol and usage of the system, you can just un-check the Dynamic Redirection feature shown above. Such a change will result in the scanning to behave as if you still used TSScan 2.All can calls issues after the change was made go through the original twain_32_system.dll.
NOTE: This would be recommended only in a case if your application is having some problems with the
TSSCan 3 version you have on the server.