Xchat

Need xchat. Official build is non-freeware, but opensource. But there is good pre-builded xchat - http://silverex.org - GPL and Free. It need .bat file for running in portable mode, its my:

set PATH=\PortableApps\xchat\lib
xchat.exe -d "\PortableApps\xchat\settings"
:end
exit

Anyone can make it in NSIS format? thx