Using Boot.wim instead of WinPE.wim for rescue media?

[Drumming Pete]

I need Macrium reflect to build a bootable rescue USB. Without needing to download anyhting from Microsoft. pointing the wizard to my Boot.wim from the Windows7 installation disc does not help. Macrium probably needs a "WinPE.WIM". Where can I find this on my Windows 7 system?

Should I use Install.Wim instead?

 

[SIW2]

Not sure why macrium claims to be able to use a custom wim, it always refuses.

There is a little thing here that will create fully functional pe for you, and include Macrium.