Query : Y2K for FPD 2.5 Application ; 19th Century Hard coded!

Problem : with set century on application takes 19 th
century as default.
Entering date as 01/01/00 takes 01/01/1900.

Fact: Systen date is set to 1st January 2000
Platform Foxpro 2.5 for dos and windows.

Is any other setting like set cetury to 20 available?
because apllication is quite big and complex to re-touch.

any workaround ?