Compiling with parameters, help with workdir

I am compiling script FirefoxPortable.nsi with parametrs:

StrCpy $EXECSTRING `"$PROGRAMDIRECTORY\$PROGRAMEXECUTABLE"  -app application.ini -override "%APPDATA%\WebApps\quake.live@prism.app\override.ini" -webapp quake.live@prism.app -profile "$PROFILEDIRECTORY"`
Goto CheckMultipleInstances

LaunchProgramParameters:
StrCpy $EXECSTRING `"$PROGRAMDIRECTORY\$PROGRAMEXECUTABLE"  -app application.ini -override "%APPDATA%\WebApps\quake.live@prism.app\override.ini" -webapp quake.live@prism.app -profile "$PROFILEDIRECTORY" $0`

But i dont know how to write a workdir
my workdir is

"C:\Program Files\FirefoxPrismQuakeLive\Firefox\Data\profile\extensions\refractor@developer.mozilla.org\prism"

Help pls! (i bad speak english)

[I tidied your code formatting, mod SL]