Hi, I'amcreating a custom Win32 application and include it inmy WinPE image. I'am creating an UFD drive for booting. The UFD boot well and i can see my custom application in the X: (RAM). But when i want to start it, i have this error :"Application failed to start because side-by-side configuration is incorrect ". My custom application is ahello worldtest.Any idea? Thanks. There are the step i do to include my aplication: copype.cmd x86 c:\winpe_x86 imagex /mountrw c:\winpe_x86\winpe.wim 1 c:\winpe_x86\mount copyMyCustomApp.exe c:\winpe_x86\mount\windows\system32 peimg /prep c:\winpe_x86\mount\windows imagex /unmount c:\winpe_x86\mount /commit copy c:\winpe_x86\winpe.wim(UFD):\sources\boot.wim

Hi The following sites may be helpful: http://babyface.name/2008/02/10/application-failed-to-start-because-side-by-side-configuration-is-incorrect/ http://technet2.microsoft.com/WindowsVista/en/library/31b6b2c0-2739-4204-88f0-2000a4b9e20a1033.mspx?mfr=true http://technet2.microsoft.com/windowsvista/zh-CHS/library/7a560d14-7d86-4167-a567-ffe6e2d061cc2052.mspx?mfr=true Hope it helps. Tim Quan - MSFT