Mobilizing a binder gives Different Database Version message.
If you receive a message that your database versions are different when you try and mobilize a Binder, your system may have and older version of the Firebird database engine installed or it could be missing the component.
To resolve, browse to this path on your system:
C:\Program Files (x86)\Doc.It Suite 4\Doc.It 4\Third Party
locate the following files...
For 64bit - Firebird-2.5.1.26351_1_x64
For 32bit - Firebird-2.5.1.26351_1_x86
Run one of the above based on your OS architecture and accept the defaults.