Description: SmileboxTray.exe is located in a subfolder of "C:\Documents and Settings". Known file sizes on Windows 7/XP are 201,352 bytes (35% of all occurrences), 254,600 bytes, 266,888 bytes, 193,424 bytes or 205,448 bytes.
The file has a digital signature. It is not a Windows system file. Therefore the technical security rating is 24% dangerous, however also read the users reviews.
To "close it" right click on your taskbar (at the bottom of the screen) and choose Task Manager.
Locate it in the list of runnign process, click it and click "End Process". It will then be shut down.