[hostar]

fastboot_win_alpha.zip deleted and deprecated, for full version of fastboot for Windows go here.

Original post under spoiler

Spoiler:

Fine. I was asking because I didn't know, if you aren't working on it too, and for example, in half, I would saw, that you already made it.

Now I have encountered with unexpected problem: I can't open file with partition backup.

Attaching EXE and source that should work under MinGW.
For build run "make.bat". Three harmless warning appear.
You also need libusb0.dll in appropriate Windows dir according to 32 or 64 bit.
make.bat is made for 32 bit.

EDIT: flash partition will not work at all, but you can try to fix file handling
Also some debug output appear with every run.