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Outline of the WinPE boot process (winpeshl, setup.exe, startnet.cmd, etc.)

winpeshl.ini setup startnet.cmd

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#1 steve6375

steve6375

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Posted 13 May 2019 - 07:58 AM

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A lot of the Microsoft and other documentation is incomplete and\or wrong! I have not found a single complete description, so I thought I would post it here.

I experimented a lot and I think this is the correct execution order...

  • Winpeshl.exe is run (required file - must not be deleted) - if winpeshl.ini exists the application(s) specified in X:\Windows\system32\winpeshl.ini are run.
  • If the winpeshl.ini file exists but is invalid, a cmd shell will be opened and the process will stop.
  • If winpeshl.ini does not exist then X:\Setup.exe is run, if it exists.
  • X:\Setup.exe allows the user to choose a language and then choose either Repair or Install - if you choose Install it runs X:\sources\setup.exe.
  • The \Sources\Setup.exe will look on all drives for a \Sources folder containing both the file "setup.exe" and a install.wim, install.swm or install.esd file in the same folder - if not found it will prompt you to install CD\DVD drivers.
  • Windows can then be installed using the \Sources\install.* files.
  • If no winpeshl.ini file is found and no X:\Setup.exe is found then cmd /k X:\Windows\system32\startnet.cmd is run.
  • Usually, Windows PE's boot.wim install images contain the X:\Windows\system32\Startnet.cmd file which just contains the command Wpeinit.
  • Wpeinit.exe loads network resources and coordinates with networking components like DHCP. It also loads a X:\Unattend.xml file (if it exists) to process settings such as firewall, network and display settings.
  • When Wpeinit.exe completes, the Command Prompt window is displayed.
  • The boot process of Windows PE is complete.

Read more: https://easy2boot.xy...e-boot-process/


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