I finally found how to solve my problem (read MY REQUEST)
This is command, AND PARAMETER, if you want to jump/reach WinXP User Account Pictures window
rundll32 shell32.dll,Control_RunDLL nusrmgr.cpl ,initialTask=ChangePicture
How do i proceed?
I've used PE Explorer (v1.99 R6) in Disassembler Mode with %windir\explorer.exe (see snapshot below).
Great, isn't it ?