The Peachtree Accounting Application software is installed on each computer that runs the application. The database is located on a computer running Windows VIsta. The application runs great that machine where the database is located, but accessing the database on the other workstations is extremely slow. The workstations access the database via a mapped drive. The workstation that runs Windows 7 seems to be slower accessing the database than other, older, less powerful computers running XP. Peachtree does advise not to run the new internet protocol (vp 6 ? vs vp 4 ) since the Pervasive Database manager does not support the newer protocol and I have made those adjustments on the VIsta and Win 7 machines. Other types of files (large graphics files, etc.) do transfer quickly over the network. I have tried switching cards, cables, disabling firewalls and antivirus software, all to no avail. The network cards are gigabit as is the router.