Xircom RealPort2 CardBus Modem 56 WinGlobal R2BM56WG Driver v2.00 Windows 9x/NT4/2000. This self-extracting archive file contains all installation and driver software released on CD-ROM with the product.. Do use the latest driver version available, it will help you use the facilities of your hardware easier and better. An old version can create hardware conflicts and errors in function. Try to stay updated with your drivers monthly or sometimes weekly. Chose wisely the specific drivers: motherboards driver, bios, graphic cards drivers, modem drivers and so on. Chose the right driver for your hardware and try to make backups of your system every time you want to make a change.