The Black Ice Software Document Imaging SDK include 64 bit support from Version 12.00.
The benefits of 64-bit hardware can only be fully obtained if the installed software is designed to use all the features of the hardware. Software intended for 32-bit computers, although compatible, will generate few, if any, of the desired benefits when it is installed on a 64-bit computer.
Black Ice Software Document Imaging SDK have seperate installers for 64-bit computers.