Why would you need to install Windows 10 to virtualize Server 2003? The host OS doesn't have to do anything with the guest OS.
For your other questions, hmm, difficult to say. These questions make even less sense than the first one. Maybe a little language barrier problem here? Or a crucial misunderstanding.
All I can say at the moment is that you probably shouldn't run Server 2003 under any circumstances. It's old, it's unsupported and if you still need it for whatever reason, you have a really big problem.
For your other questions, hmm, difficult to say. These questions make even less sense than the first one. Maybe a little language barrier problem here? Or a crucial misunderstanding.
All I can say at the moment is that you probably shouldn't run Server 2003 under any circumstances. It's old, it's unsupported and if you still need it for whatever reason, you have a really big problem.