Hello, I have added EI.CFG to /source directory of installation ISO: 9600.16384.130821-1623_x64fre_Server_EN-US_IRM_SSS_DV5.iso Code: [EditionID] ServerDatacenter [Channel] Volume [VL] 1 ...which works nicely by auto-using the VLK product key for Detacenter edititon at original ISO, but: after I have: 1) Integrated OS language pack to install.wim 2) Integrated WinPE language pack to index #1 and #2 of boot.wim and to winre.wim 3) Integrated all MSU updates up to 2014/02 4) Integrated nVidia INF driver (the latest) 5) Enabled the following features: NetFx3 (NetFx3ServerFeatures), CoreFileServer and Dedup-Core (File-Services), TelnetClient, ServerMediaFoundation ...and burned this to ISO by (oscdimg) VLK Datacenter product key no longer pass (entered manually or via EI.CFG) with error "The product key isn't equal to any bit-copy". :/ Could anybody tell me please: 1. Which integration step (from 1)-5) listed above) is responsible for it? 2. Do these integration steps altering the editions? 3. Or does "bitcopy" mean, that user can't do ANY of those integrations? Here is my integration procedure: <removed> Thanks for any help...