If installing on FrameMaker 8, 9, 10, 11, or 12 you must edit the maker.ini file to disable the existing DITA support.
DITA-FMx cannot coexist with the default FM-DITA support. An error message will display to remind you of this if you neglect to modify the maker.ini file.
Open the maker.ini file (in the main FrameMaker program folder) and locate the APIClients section. Look for lines that start with ditafm, ditafm_app, ditabook (FM8 only), and possibly ditaOpenToolkit or DITA OT (in FM12 or if you’ve installed the DITA OpenToolkit connector). Delete or comment out these lines (by adding a semicolon at the start of the line).
In FM12, you should see lines that look like the following:
ditafm=Standard, Translation client for DITA, fminit\ditafm.dll, structured ditafm_app=Standard, Translation client for DITA, fminit\ditafm_app.dll, structured Dita OT=Standard, DITA OT client for DITA, fminit\openToolkit.dll, structured
On FrameMaker 10, 11, and 12 , you must restart FrameMaker after initial setup to ensure that the proper structure applications have been registered in the default FrameMaker ditafm.ini file. Due to changes in these FrameMaker versions, the structure applications are stored in both the ditafmx.ini and the default ditafm.ini files.
You may now proceed to Run the Installer Application.