Editing Windows NT 3.5 (section)

{{Short description|Second major release of Windows NT, released in 1994}}
{{Use mdy dates|date=March 2021}}
{{Infobox OS
| name = Windows NT 3.5
| version of = [[Windows NT]]
| logo =
| logo size = x110px
| screenshot = Windows NT 3.5.png
| caption = Screenshot of Windows NT 3.5
| developer = Microsoft
| website = 
| source_model = [[Closed source software|Closed source]]
| license = [[Commercial software|Commercial]] [[proprietary software]]
| supported_platforms = [[IA-32]], [[DEC Alpha|Alpha]], [[MIPS architecture|MIPS]], [[PowerPC]]<ref>{{cite web |url=https://archive.org/details/NT3.5PPC |title=Windows NT 3.5 for PowerPC |website=Internet Archive|date=November 9, 1994 }}</ref>
| preceded_by = [[Windows NT 3.1]] (1993)
| succeeded_by = [[Windows NT 3.51]] (1995)
| kernel_type = [[Hybrid kernel|Hybrid]]
| userland = [[Windows API]], [[NTVDM]], [[Microsoft OS/2 subsystem|OS/2 1.x]], [[Microsoft POSIX subsystem|POSIX.1]]
| first_release_date = {{Start date and age|1994|09|21}}<ref name="Reldata040809">{{cite web|last1=Adams|first1=Paul|title=Windows NT History|url=https://blogs.technet.microsoft.com/mrsnrub/2009/08/04/windows-nt-history/|website={{not typo|<nowiki>if (ms) blog++;</nowiki>}}|publisher=[[Microsoft]]|date=4 August 2009|access-date=4 October 2017|archive-date=23 April 2019|archive-url=https://web.archive.org/web/20190423013126/https://blogs.technet.microsoft.com/mrsnrub/2009/08/04/windows-nt-history/|url-status=live}}</ref>
| release_version = Service Pack 3 (3.5.807)
| release_date = {{Start date and age|1995|06|21}}<ref name="Reldata040809" />
| marketing target = Business and Server
| support_status = Support ended on December 31, 2001
}}
<!-- Deleted image removed: [[File:Windows NT 3.5 Ctrl+Alt+Delete.png|thumb|right|250px|Windows NT 3.5 startup screen with Ctrl+Alt+Delete message.]] -->
'''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.<ref>{{cite thesis |url=http://dspace.qau.edu.pk:8080/jspui/bitstream/123456789/29833/1/COM%201354.pdf |title=Geographic Information System for Capital Development Authority |author=Aftab Nazir Ahmed |publisher=Quaid-I-Azam University |page=46}}</ref> 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 [[Project code name|codenamed]] "Daytona", after the [[Daytona International Speedway]] in [[Daytona Beach, Florida]].<ref>{{Cite book |title=Microsoft Windows Internals |last1=Russinovich |first1=Mark |last2=Solomon |first2=David A. |date=8 December 2004 |publisher=Microsoft |isbn=978-0-7356-1917-3 |edition=4 |quote=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. |author-link=Mark Russinovich |url-access=registration |url=https://archive.org/details/isbn_9780735619173 }}</ref> Windows NT 3.5 was succeeded by [[Windows NT 3.51]], released in 1995.<ref name="Microsoft Windows NT 3.5">{{cite web |title=Microsoft Windows NT 3.5 |url=http://www.oldcomputermuseum.com/os/windows_nt3.5.html |url-status=dead |archive-url=https://web.archive.org/web/20130323205319/http://www.oldcomputermuseum.com/os/windows_nt3.5.html |archive-date=23 March 2013 |access-date=22 September 2013 |website=Old Computer Museum}}</ref> Support and updates for Windows NT 3.5 was ended by Microsoft on December 31, 2001.