You could have downloaded iTRC 1.4.1 for Mac from our application library for free. The software lies within System Tools, more precisely Remote Computing. The actual developer of this free software for Mac is Andy Matuschak. The following version: 1.4 was the most frequently downloaded one by the program users. ITRC.zip is the frequent file name to indicate this program's installer.
From the developer:
iTunes Remote Control (iTRC) is a network remote control for iTunes. It allows you to control iTunes on a remote machine with full track changing support and basic but functional playlist support. All you need to do it enable Remote Apple Events on the computer with iTunes on it and remember its network name.
You may want to check out more Mac applications, such as Remote Buddy Express, WmoteServer or ARD Monitor, which might be related to iTRC.