RequestTrace - Trace all IRP`s in your Windows NT box.

Select in the list of the left side the driver class which you want trace. You can make a right click on a driver class to re-enum this class. In the Middle, all hooked devices are listed. For each hooked device you can specify the trace options. Since `UpperFilters` and `LowerFilters` are only supported in Windows 2000 and above, RequestTrace is only working on 32 and AMD64 bit versions of Windows Vista, Windows XP and Windows 2000. Windows 98 doesn`t work, because I`m using an function which is not available in Windows 98. All output is visible in every debugger, like DebugView, SoftIce or WinDbg.