This process regenerates all table indexes for the application (reindexing) and compacts the files by physically deleting any deleted records in the database tables. The result is optimization of access to your files.
Run this process regularly, whenever you have deleted records from your files, whenever the program has terminated abnormally (power outage, MS Windows freeze, etc.) or whenever you notice any abnormality in the data display (records that are duplicated or not found, etc.).
You can also run this process by running QINVOICING.EXE with the REIN parameter from Start --> Run:
C:\Program Files\QINVOICING\QINVOICING.EXE REIN