IDS_MERGE_INTERNAL_ERROR
Error writing to combined index file.
Given when HxMerge.exe encounters an unspecified problem.
To correct this error
Verify that all elements and attributes are present in the HxMerge project (.HxM) file, and that each attribute has a valid value.
Ensure that there is enough free memory on the local computer.
Ensure that you have the correct permissions to write files on the local computer.