Microsoft Windows NT Workstation 4.0 with. Windows NT Workstation 4.0 focuses on reliability, manageability, security, and performance. Its multithreaded, kernel-based architecture is optimized to run modern 32-bit Windows-based applications, while also supporting many leading MS-DOS-based and 16-bit Windows-based business applications. Windows NT Workstation 4.0 supports more than 4,000 hardware devices and peripherals. Portable users now can take advantage of Plug and Play and power management tools from third-party vendors. With a shared architecture, Windows NT Workstation 4.0 is also the best networking client to the scalability, manageability and performance of Windows NT Server 4.0.