Hi trizet, thank you for your help. Now, it's works ! I have another issue, I start PENetwork on boot but i need to click on Close button. Do you have tips to close automatically after network is loaded. Thanks a lot ! what windows version? and how you build your PE? those registry for windows 7 x86 (32bit), i can not test for 64 bit beacuse i dont have it. sorry i did not post complete step because my post is meant for wimb, in case he can manage to get it works and integrates to his Make_PE3. however, if you interest to make it work, this is complete step. 1. download my PE3-SOFTWARE_CUSTOM.reg and PE3-SYSTEM_CUSTOM.reg , extract to folder: Make_PE3\PE3_mod\PE3_reg\x86 if you are using others windows version, extract Make_PE3\PE3_mod\PE3_reg\ia64 or Make_PE3\PE3_mod\PE3_reg\amd64 , but i am not sure if it is work. 2. edit file Make_PE3\PE3_mod\PE3_add\x86\Windows\System32\startnet.cmd and add these lines (you can add commands before of after pstart command) for %%p in (a b c d e f g h i j k l m n o p q r s t u v w x y z) do if exist %%p:\wallpaper.jpg "%ProgramFiles%\Wall-Cmd\WallCmd.exe" "%%p:\wallpaper.jpg" for %%p in (a b c d e f g h i j k l m n o p q r s t u v w x y z) do if exist %%p:\wallpaper.bmp "%ProgramFiles%\Wall-Cmd\WallCmd.exe" "%%p:\wallpaper.bmp" 3. edit file Make_PE3.cmd to register those CUSTOM.reg, you can find reg import commands in :_valid_pe section. add reg import for CUSTOM.reg after wimb registry like this reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SYSTEM_WLAN.reg" >nul reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SYSTEM_LANMAN.reg" >nul reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SYSTEM_CUSTOM.reg" >nul reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SOFTWARE_MMC.reg" >nul reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SOFTWARE_CLID.reg" >nul reg import "%TP%\PE3_mod\PE3_reg\%ARCH%\PE3-SOFTWARE_CUSTOM.reg" >nul 4. build your PE using Make_PE3.cmd. 5. put your background picture on the root of usb flash disk, rename it to wallpaper.bmp or wallpaper.jpg this is my screenshot