Everyone:
For customers who have been experiencing Error 12 messages with missing data entry files in Legacy applications such as Payroll, Job Cost, Work Order, etc. please take a look at Sage Knowledgebase KB article 77960 [Error 12 while processing data entry in Legacy application modules for Sage 100, Payroll data entry files missing]. Program Fixes have been made available.
Sincerely,
Paul Chen
Customer Support, Advisory
Sage North America