| .NET Framework | Service Pack Level | Registry Key Name | Value |
| 4 - Client | Any Version | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client | Install = 1 |
| 4 - Full | Any Version | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full | Install = 1 |
| 3.5 | Any Version | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 | Install = 1 |
| 3.5 | Service Pack 1 or Greater | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 | SP >=1 |
| 3.0 | Any Version | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 | Install = 1 |
| 3.0 | Service Pack 1 or Greater | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 | SP >= 1 |
| 3.0 | Service Pack 2 or Greater | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 | SP >= 2 |
| 2.0 | Any Version | HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 | Install = 1 |
| 2.0 | Service Pack 1 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 | SP >= 1 |
| 2.0 | Service Pack 2 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 | SP >= 2 |
| 1.1 | Any Version | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 | Install = 1 |
| 1.1 | Service Pack 1 or Greater | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 | SP >= 1 |
| 1.0 | Any Version | HKEY_LOCAL_MACHINE\Software\Microsoft\.NET Framework\Policy\v1.0 | Name: 3705, Type: REG_SZ, exists |
| 1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) | Service Pack 1 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} | Version >= 1.0.3705.1 |
| 1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) | Service Pack 2 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} | Version >= 1.0.3705.2 |
| 1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) | Service Pack 3 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} | Version >= 1.0.3705.3 |
| 1.0 (shipped with Windows XP Media Center 2002/2004 and Tablet PC 2004) | Service Pack 2 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24} | Version >= 1.0.3705.2 |
| 1.0 (shipped with Windows XP Media Center 2005 and Tablet PC 2005) | Service Pack 3 or Greater | HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24} | Version >= 1.0.3705.3 |
