In the changing .Net world it's difficult to keep track of version corresponding to framework .

Following is compiled list of .Net Version till 4.0

1.0
===

.Net Framework 1.0 RTM                          ===> 1.0.3705.0
.Net Framework 1.0 SP-1                          ===> 1.0.3705.209
.Net Framework 1.0 SP-2                          ===> 1.0.3705.288
.Net Framework 1.0 SP-3                          ===> 1.0.3705.6018

1.1
===

.NET Framework 1.1 RTM                             ===> 1.1.4322.573
.NET Framework
Service Pack 1                    ===> 1.1.4322.2032
.NET Framework included with Win2k3 SP-1   ===> 1.1.4322.2300

 

2.0
===

.Net Framework 2.0 RTM                             ===> 2.0.50727.42
.Net Framework 2.0
Service Pack 1               ===> 2.0.50727.1433

MS07-040 security patch was released in July ===> 2.0.50727.832

.Net Framework 2.0 Service Pack 2             ===> 2.0.50727.2407 

(.Net 2.0 SP 2 is *not* available as stand alone download, it is included into .Net 3.5 SP-1
It installs the .NET Framework 2.0 SP2 behind the scenes )

  <Update>

.Net Framework 2.0 SP2 now comes as a standalone installation and not clubbed with 3.5 SP1. You can download the same here.

This is supported on Windows XP and Windows 2003. For Vista and Windows 2008, the users would still have to install 3.5 SP1.

  </Update>

3.0
===

.Net Framework 3.0 RTM                             ===> 3.0.4506.30
.NET Framework 3.0
Service Pack 1              ===> 3.1.21022

 

3.5
===

.NET Framework 3.5 RTM                             ===> 3.5.21022.08
.NET Framework 3.5
Service Pack 1               ===> 3.5.30729.1

4.0
===

.Net framework 4.0 RTM                    ===>  4.0.30319.1

keep it handy  Smile