Theres various ways it could be done. I personally just have the shortcut call an EQStart.sh script that will load the game. Here is the script I use:
#!/bin/sh
# if you don't have the script's cwd set, you get XML errors
export WINEPREFIX=/home/username/.wine/
cd /home/username/.wine/drive_c/EverQuest
# Bind to one core of the processor and launch.
# The client will spew a lot of errors, especially every time
# you target a mob, hence the stdout/stderr redirect.
# You probably want to leave off the 2>/dev/null until you're satisfied
# everything is working.
taskset -c 0 padsp wine eqgame.exe patchme 2>/dev/null
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