Error message is received
when you attempt to backup.
Resolution:
Si Mobile Central is reporting that the file compression
program PKZIPC.EXE is missing from the Si Speedy Invoice
program folder.
1. Perform a full re-installation Si Speedy Invoice
to resolve the problem.
NOTE: Perform the re-installation into the same program
folder as originally installed. Deletion of the Si Speedy
Invoice program folder and its contents may cause you
to lose your configuration settings and possibly data.