UsbTreeView started with the USBView source code from the DDK for Server 2003. Here are the improvements I've done:

• TreeView with handmade 16x16 icons, USBView used 32x32 icons scaled down to 15x15
• Informations from the Windows Device Management are collected and matched with the found USB devices; Therefore UsbTreeView can show the child devices, including drive letters and COM-ports
• Window position is saved
• Background color and font of the right pane can be set (the font shown in the screenshots is DOSLike 7)
• Text output rearranged
• Keeps the tree item selection over refresh
• Some more descriptors are decoded
• Hexdump of the descriptors can be shown
• Safe removal, device restart and port restart
• Extended USB information available under Windows 8 (taken from the latest USBView sample application)
• Extended information about host controllers
• Enumeration of the USB devices accelerated and independent from the treeview
• Failed USB requests are re-tried in the background, e.g. if a USB mouse was moved while requesting its properties
• Toolbar with jump-lists for easily finding devices in complex trees
• many minor improvements

• USB Video Class H.264 information
• Maybe Unicode support