This is more of a remote control question, but I'm posting here since the HTPC group may be more knowledgeable about using a USB-UIRT. I'm not looking to automate my home theeater with an HTPC. I only want to use a PC to transmit discrete IR codes to my non-PC interfacing learning remote (URC MX-500). Some of the home automation software seems to be overkill for this use, so I'm looking for something pretty simple where I can just drop in a hex or Pronto code and blast it out the USB-UIRT with a button click. Or alternatively, learn them and then blast them back out.