I've made several offline activating 32bit Win 7 Pro install discs for OEM machines with existing SLIC 2.1. Use WAIK to add the proper OEM:SLP key & set the Index number to 4 (Pro). Then create a Pro ei.cfg, put it in the Sources folder along with adding the correct $OEM$ folder. It installs Pro without asking for a key and activates offline. Used the exact same method with a 64bit version but the key is not being automatically installed. It knows to install Pro and the Cert is installed but the key is not. It can be manually installed and activates fine but I would like it to work the same as the 32bit versions I've made. My only guess is the $OEM$ path may need to be different for the 64bit disk. But since the Cert and wallpapers from the $OEM$ folder are installed it would appear that may not be the problem. Any thoughts? Thanks.