Windows NT 3.5

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
	Unsupported as of December 31, 2001

Windows NT 3.5 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. It was released on September 21, 1994, as the successor to Windows NT 3.1 and the predecessor to Windows NT 3.51.^[3]

One of the primary goals during Windows NT 3.5 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.^[4]

On December 31, 2001, Microsoft declared Windows NT 3.5 obsolete and stopped providing support and updates for the system.

^ ^a ^b Adams, Paul (August 4, 2009). "Windows NT History". if (ms) blog++;. Microsoft. Archived from the original on April 23, 2019. Retrieved October 4, 2017.
^ "Windows NT 3.5 for PowerPC". Internet Archive. November 9, 1994.
^ "Microsoft Windows NT 3.5". Old Computer Museum. Archived from the original on March 23, 2013. Retrieved September 22, 2013.
^ Russinovich, Mark; Solomon, David A. (December 8, 2004). Microsoft Windows Internals (4 ed.). Microsoft. ISBN 978-0-7356-1917-3. The first release of Windows NT was larger and slower than expected, so the next major push was a project called "Daytona", named after the speedway in Florida. The main goals for this release were to reduce the size of the system, increase the speed of the system, and, of course, to make it more reliable.