Summary
The Legacy OCR Adapter includes two .reg files that simplify the process of switching between OCR engines. However, the .reg files do not work properly on 64-bit editions of Windows.
Cause
On 64-bit editions of Windows, registry keys for 32-bit applications are stored under the "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node" branch instead of directly under the "HKEY_LOCAL_MACHINE\SOFTWARE" branch.
Resolution
There are x64 versions of "Use IRIS OCR Engine.reg" and "Use OmniPage OCR Engine.reg."
Click the following link to download a zip file with x64 versions of the .reg files.
Legacy OCR Adapter x64 registry files.zip
Related Links
For more information on the Legacy OCR Adapter, please see the following Knowledge Base article.
1011682 Enabling IRIS OCR With The Legacy OCR Adapter.