I've difficult with Windows NT 4 build 1227.1 Installation

[rixolino]

While I open on Win98 VM setup.exe, it doesn't start. What will I do?

[Win7]

You should start the installation from an MS-DOS or Windows boot disk, not from a fully installed Windows 98 virtual machine, regardless of what emulator or hypervisor you are using.

Offtopic Comment

Glad to see there's another user from Italy. I'm Italian, too!

Win7