OnMark 2000 will test your system for Year 2000 compliance. If testing results indicate Y2K date-management deficiencies, Viasoft's BIOS Fix corrects the problem by installing a Terminate and Stay Resident (TSR) that monitors the Real-Time Clock (RTC) and BIOS date functions. This TSR immediately corrects an erroneous century rollover, and it can update individual clock ticks per second, either before or after January 1, 2000.