[MSDN Library June 1998] VTD_Update_System_Clock (67.9929266136163%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Windows 95 Device Driver Kit > Kernel Services Guide > Virtual Timer Device > Reference

[MSDN Library September 1992] VTD_Update_System_Clock (49.8172043010753%)

Product Documentation > Windows 3.1 DDK > Virtual Device Adaptation Guide > PART 1 Creating Virtual Devices > Chapter 21 Timer Devices