D:\Factorio\bin\x64\Factorio.exe --start-server --mp-load-game MP.zip

You have a superfluous --mp-load-game there.

The correct command line is factorio.exe --start-server MP.zip

oh thank you ok! It works now!

D:\factorio\bin\x64\factorio.exe --start-server MP.zip
0.001 2015-07-18 13:05:02 ...

there will be a Windows Server multiplayer version? Without graphics, for a root with windows would be great.

I don't think we even have a Windows Server machine anywhere in the office.

Nevertheless, the Windows binary should come with the same --start-server option as the Linux and Mac binaries ...

Since there seems to be a way to start with 0.12 a dedicated Linux server, I would now be interested if that goes well with a Windows server or whether this possibility is yet to come.

Before now someone comes with Windows Server suck or change it on linux. We have just a Windows root because of ...

there will be a Windows Server multiplayer version? Without graphics, for a root with windows would be great.