Program with gdb file sync with online ecommerce

view story

http://stackoverflow.com – I have a client that uses a windows program to manage his company. Custom and Old ERP. =( Its running windows and it's have some *.gdb file in the db folder of the program. Since i'm developing his online store, i need to sync, clients, products, stock and orders between the ERP and OnlineShop. This gdb is interbase firebrird file? I never have work with this one! I don't even know how i can start to do this sync. Maybe a WAMP with www/ running on the same folder of the program files x86/erpcustom/erp.exe? So in that way i can have external access do db? I'm kind of lost in how i should (HowTos)