This is an Open Source [MPL] SOAP client COM component for the Windows family, originally targeted at PocketPC (hence the name), there is also a Win32 version that works on Windows 95/98/Me/NT4/2000/XP/2003. The package includes a HTTP 1.1 transport
Using YATT Once installed, you can run YATT, by selecting the YATT icon from the start menu. You'll be prompted to select a trace provider, choose the WinPCAP one if you have a machine that it'll work on, as there seems to be a bug in Windows XP raw