ADVANCED FEATURES

HF\NOREG subfolder

This subfolder of the HF folder is intended for Type 1 hotfixes for which the registry doesn't need to be updated.  If there are no post-install commands to be executed, if nothing needs to be removed from the registry, and if nothing is added into the registry beyond the basic hotfix identification and uninstallation keys, it is generally safe to put a hotfix in this folder.

If an existing hotfix list showing files that are safe to be put in HF\NOREG is not up-to-date, either wait for the list to be updated or examine the update_SP<N>QFE.inf file inside the "update" folder of the hotfix yourself.  Do not just put hotfixes in HF\NOREG; the Windows Update site does not always verify if all required registry changes were executed.

REPLACE folder

The REPLACE folder, which needs to be created manually, is intended for files and folders that need to be copied into the new source after everything was slipstreamed, overwriting any existing files and folders.  It can for example be used to add custom SFC*.DL_ files or an updated version of SUPPORT.CAB:

    REPLACE\AMD64\SFC.DL_
    REPLACE\AMD64\SFC_OS.DL_
    REPLACE\AMD64\SFCFILES.DL_
    REPLACE\SUPPORT\TOOLS\SUPPORT.CAB

FASTER WMP11 SLIPSTREAMING

You can speed up the slipstreaming process of Windows Media Player 11 by extracting wmp11-windowsxp-x64-<LNG>.exe into HF\WMP11 beforehand.  HFSLIP64 will always use this if it exists.