oem IrpTrace is a tool that watches IO request packages (IRP) sent to ke el mode driver(s) of Windows NT 4.0, Windows 2000 or Windows XP. Information about IRP requests can be sent to remote debugger andor saved to a file. The collected information is available for instantaneous or deferred analysis, which makes this tool indispensable for debugging and support of device drivers. If a driver causes system crash or hangs at processing of an IRP, IrpTrace can help to locate buggy handler by information sent to remote debugger or output window of terminal application. Usually developers insert debug messages to locate crash point. Advantage of IrpTrace in that that: a) it can do it for non debug version of drivers; b) developer can save time using for writing debug code. If a driver forgets to complete an IRP request, it can cause various problems (up to system hang or blue screen). The list of not completed IRP requests can be determined using IrpTrace. Windows 2000XP build a stack of physical, filter and functional devices for each PnP device. Your software for a PnP device can malfunction due to a third party software installed on the computer. IrpTrace can help you to locate such kind of problems.

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