.Net Framework Versions

Productversion Service pack 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 4.0 Original Release 4.0.30319.1