ile ATIRW.exe is located in a subfolder of "C:\Program Files" (common is C:\Program Files\ATI Multimedia\RemCtrl\). Known file sizes on Windows XP are 196608 bytes (36% of all occurrence), 200704 bytes, 1482752 bytes, 167936 bytes, 192512 bytes, 1622016 bytes, 188416 bytes.
The file is not a Windows core file. Program starts upon Windows startup (see Registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run). The program can be removed using the control panel Add\Remove programs applet.