Happy new year!! Eidenk, i was about to do the same thing like what populous intended to prepare in the unattended XP cd, and i do what you said as copy the tree in the Wassociate into notepad and save it as .reg format. Yes, the icon can be change by registering the .reg file that created. My question is: Do i have to make WAssociate addon into the XPCD in order to register the .reg that had with my favorite icon path and all in all, the file type that had change with the desired icon and it won't change again to other else icon regardless what software it may associate with in future. Hopefully not confuse to you. Thanks.