Tahnks a lot for your work! The tool has saved me so many headaches with windows trying to install the boot partition on random disks all the time. I'm now trying to install a custom version of XP (it's basically a collection for modern motherboards drivers and other stuff) called integral edition but as soon as I boot into the newly created disk I get the following error in the setup:"the file wdf01000.sys could not be found". This for example, doesn't happen with a USB created using WinSetupFromUSB (maybe because it supports custom setups?). Not sure if you even care, since this is a custom iso for an obsolete OS, but I thought reporting the problem wouldn't hurt.
