How to resolve a P9OGRC return of X when calling C1MATCHx in CODE-1 Plus

When calling the C1MATCHx callable routine in CODE-1 Plus, a P9OGRC return code of X may result from:

1) an expired US Postal database or DPV database (if DPV is activated)

2) an incompatible database is being referenced (3.7 style database being pointed to on a machine running 4.0 for example)

3) an expired, invalid or missing CODE-1 Plus license
UPDATED:  April 26, 2017