Hi Kevin
Yes, Adagio Ledger V6.6A is compatible with ACCPAC Plus Cdn Payroll 6.5.
There is a newer version of Adagio Ledger, however - with many added enhancements - V6.8A (011106) is now shipping.
For more information on the new features, go to the Adagio Ledger Product Information page on our website: Adagio Ledger New Features.
Also, there could be a ptf available for your 6.6A version, that will take you to the most current release date of 6.6A. You could contact our Customer Service department for more information on this: customerservice@softrak.com .
Regards