Bus Hound

Bus Hound is the first software bus analyzer that can capture I/O, protocol, and performance measurements.
Here are some key features of "Bus Hound":
ï¿­ Supports IDE, SCSI, USB, Bluetooth, FireWire, serial ports, parallel ports, ps/2 mice, and ps/2 keyboards.
ï¿­ Supports all types of devices such as hard drives, DVD, mice, scanners, web cams, and everything else
ï¿­ Supports 32-bit and 64-bit Windows versions.
ï¿­ Capture megabytes of data limited only by available memory
ï¿­ Automatically stop the capture upon a trigger condition
ï¿­ Measure individual read, write, and isochronous device performance
ï¿­ Captures device driver packets such as IRPs
ï¿­ Filter what type of phases are captured
ï¿­ Run on an unlimited number of machines at the same time
ï¿­ Capture any number of devices in parallel, regardless of bus type
ï¿­ Fits on a diskette for easy transportability and quick downloads
ï¿­ Drag and drop the captured data to other products in html format
ï¿­ Save captured data to a text file or zip file
ï¿­ Simple device selection from a graphical tree of devices
ï¿­ Capture the system startup process
ï¿­ Customize captured data such as the byte width per line, column order, and column types of interest
ï¿­ View low level protocol including SCSI sense data and USB setup packets
ï¿­ View microsecond resolution timing of each phase
ï¿­ Watch I/O on screen in real time as it happens
ï¿­ Pure software solution--no extra hardware or system changes needed
Limitations:
ï¿­ It captures up to 32 commands
ï¿­ It captures only the first 8 bytes of each data transfer
ï¿­ Nag Screen