Hello,
I can't file what /tray -i is doing i open the file and the -i paramater is not exist:
File:
/tray -iNmNsNtNaN <filename>
This command changes the mIRC Tray icon to the Nth icon in the specified file (which might be an .exe, .dll, or .ico).
The -msta switches enable or disable the tray settings in the Options dialog, where N is 0 or 1.
Note: The animate icon option cannot work if you have selected a custom icon.