The Microsoft Virtual Machine (Java VM Windows 98/NT) is an operating system created by Microsoft specifically for use with Microsoft Windows 98. It allows users to create a virtual machine on their Windows 98 operating system, providing a secure and isolated environment for testing software or running multiple operating systems simultaneously. This OEM product comes in English language and is licensed for use with one device. The virtual machine provides a lightweight and efficient solution for users looking to test software compatibility or run multiple operating systems on their Windows 98 computers.