official:

http://winlirc.sourceforge.net/

How-To: IR Remote Control your Computer:

http://www.engadget.com/2006/05/16/how-to-ir-remote-control-your-computer/2

WinLIRC, EventGhost, DPDT, Remote HTPC Control is Easy

http://htpc-hell.zxq.net/?p=61

USB Infrared Toy

http://dangerousprototypes.com/docs/USB_Infrared_Toy

http://www.seeedstudio.com/depot/usb-infrared-toy-v2-p-831.html

http://www.controllerprojects.com/category/usb-ir-toy/