What .NET Framework version numbers go with what service pack
I got a comment from a customer in response to a previous blog post asking about file versions for the various versions and service packs of the .NET Framework. I was planning on just navigating to an MSDN site and replying with a link, but I couldn't find anything like that in any MSDN article or any KB article, so I figured I could come up with a quick table listing them. Keep in mind that not every file is updated by every service pack, so you may not see this exact version for all of the files that are part of the .NET Framework. Also, because of some of the magic that the Visual Studio and .NET Framework build lab uses to build some of the files that are part of the .NET Framework, you may see a .NET Framework-like version number (one that starts with 1.0, 1.1, or 2.0) or a Visual Studio-like version number (one that starts with 7.0, 7.10, or 8.0).
.NET Framework product version |
Service pack level |
Version |
.NET Framework 1.0 |
Original release |
1.0.3705.0 and 7.0.9466.0 |
.NET Framework 1.0 |
Service pack 1 |
1.0.3705.209 |
.NET Framework 1.0 |
Service pack 2 |
1.0.3705.288 and 7.0.9502.0 |
.NET Framework 1.0 |
Service pack 3 |
1.0.3705.6018 and 7.0.9951.0 |
.NET Framework 1.1 |
Original release |
1.1.4322.573 and 7.10.3052.4 |
.NET Framework 1.1 |
Service pack 1 |
1.1.4322.2032 (if you have the MSI-based 1.1 SP1 installed) or 1.1.4322.2300 (if you have the OCM-based 1.1 SP1 installed on Windows Server 2003) and 7.10.6001.4 |
.NET Framework 2.0 |
Beta 1 |
2.0.40607.16 and 8.0.40607.16 |
.NET Framework 2.0 |
Beta 2 |
2.0.50215.44 and 8.0.50215.44 |
.NET Framework 2.0 |
Original release |
2.0.50727.42 and 8.0.50727.42 |
.NET Framework 2.0 |
Service pack 1 |
2.0.50727.1433 and 8.0.50727.1433 |
.NET Framework 2.0 |
Service pack 2 |
2.0.50727.3053 and 8.0.50727.3053 |
.NET Framework 3.0 |
Original release |
3.0.04506.26 (on Windows Vista) and 3.0.04506.30 (on downlevel operating systems) |
.NET Framework 3.0 |
Service pack 1 |
3.0.04506.648 |
.NET Framework 3.0 |
Service pack 2 |
3.0.04506.2152 |
.NET Framework 3.5 |
Original release |
3.5.21022.8 and 9.0.21022.8 |
.NET Framework 3.5 |
Service pack 1 |
3.5.30729.1 and 9.0.30729.1 |
.NET Framework 4 |
Original release |
4.0.30319.1 and 10.0.30319.1 |
Please note that it is definitely not reliable to use the file versions in the above table to detect the installed service pack level. If you're interested in accurately determining what version of the .NET Framework is installed and what service pack is installed I would recommend checking out the blog post and sample code that I previously posted at this location.
<update date="1/31/2006"> Added another possible version number for 1.1 SP1. The files have different versions depending on whether you have the MSI-based .NET Framework 1.1 package installed or the OCM-based .NET Framework 1.1 package that is included as a part of Windows Server 2003 </update>
<update date="3/3/2006"> Added a column to the table for the final release of the .NET Framework 2.0 now that it has shipped </update>
<update date="3/20/2007"> Added a column to the table for the final release of the .NET Framework 3.0 now that it has shipped </update>
<update date="3/6/2008"> Added columns to the table for the .NET Framework 2.0 SP1, the .NET Framework 3.0 SP1 and the .NET Framework 3.5 now that they have shipped </update>
<update date="8/14/2008"> Added columns to the table for the .NET Framework 2.0 SP2, the .NET Framework 3.0 SP2 and the .NET Framework 3.5 SP1 now that they have shipped </update>
<update date="4/27/2010"> Added a column to the table for the .NET Framework 4 </update>