drivers needed for apc back ups pro 500

My UPS is not communicating with my desktop. I contacted APC and they suggested I reinstall the drivers from the Windows 98 CD. Since Win98 was installed at the factory, I do not have the CD. I am hoping someone has these drivers and can send them to me. They are: HIDUSB.SYS HIDCLASS.SYS HIDPARSE.SYS HIDDEV.INF
If anyone can help, I would appreciate it.