Windows NT 3.5
| Version of the Windows NT operating system | |
Screenshot of Windows NT 3.5 | |
| Developer | Microsoft |
|---|---|
| Source model | Closed source |
| Released to manufacturing | September 21, 1994 |
| Latest release | Service Pack 3 (3.5.807) / June 21, 1995 |
| Marketing target | Business and Server |
| Platforms | IA-32, Alpha, MIPS, PowerPC |
| Kernel type | Hybrid |
| Userland | Windows API, NTVDM, OS/2 1.x, POSIX.1 |
| License | Commercial proprietary software |
| Preceded by | Windows NT 3.1 (1993) |
| Succeeded by | Windows NT 3.51 (1995) |
| Support status | |
| Support ended on December 31, 2001 | |
Windows NT 3.5 is the second major release of the Windows NT operating system developed by Microsoft, targeting the data server and personal workstation markets. It was released on September 21, 1994, as the successor to Windows NT 3.1. One of the primary goals during its development was to improve the operating system's performance. As a result, the project was codenamed "Daytona", after the Daytona International Speedway in Daytona Beach, Florida. Windows NT 3.5 was succeeded by Windows NT 3.51, released in 1995. Support and updates for Windows NT 3.5 was ended by Microsoft on December 31, 2001.