WIndows 10 1809, add netfx3 to WIM, also SMB1

Add NetFX3 and SMB1 to your WIM directly.

Mount the WIM with the correct index

dism /mount-image /imagefile:e:\temp\install.wim /index:3 /MountDir:e:\temp\mount


Add NetFX3

DISM /Image:e:\temp\mount /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:e:\temp\sxs

Enable SMB1

DISM /Image:e:\temp\mount /Enable-Feature /FeatureName:"SMB1Protocol" -All

Unmount and Commit the changes

dism /unmount-wim /mountdir:e:\temp\mount /commit