Didnt work also,,,,,,i think i understood wt the problem is the problem is that the Windows live messenger uses the 3.1 installer which is not supported in WinXP Setup mode...its not an Nlite bug. 2nd of all,,,, u cant say that nlite 1.3rc2 is buggy becauz it didnt work with ur Non-working addon.... ive already made another addon for WLM...and i tested it,....and its working 100%, i'll post it as soon as possible GUYS TEST UR ADDONS IN A VMWARE INSTALLATION BEFORE POSTING HERE!!!!......The addon works fine in a normal Setup without integration...but when u integrate it...it doesnt work....becaz it require the 3.1 windows installer... Regards Nadeem Ateyeh