HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client Look for Version = 4.0.30319.17379 (or higher, but < 4.5) Or using PowerShell:
If you’ve been working with older Windows applications or legacy enterprise software, you may have encountered a reference to Microsoft .NET Framework 4.0.3 . Unlike the more famous versions (3.5, 4.5, 4.8), 4.0.3 exists in a unique space—it was not a standalone full version but a targeting pack and update for .NET Framework 4.0. .net framework 4.0.3
Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client' | Get-ItemProperty -Name Version | Attribute | Detail | |----------|--------| | Full name | .NET Framework 4.0.3 Update | | Release date | March 2012 | | KB number | KB2600211 | | Based on | .NET Framework 4.0 | | Main purpose | Support portable libraries and early Windows 8 dev | | Supported OS (original) | Win7 SP1, Win8, Win2008 R2 SP1+ | | Can you install today? | Yes (via Microsoft Update Catalog), but not recommended | | Should you use it for new work? | No. Target .NET 4.8 or modern .NET instead | Final Verdict .NET Framework 4.0.3 was a stepping stone , not a destination. It helped bridge the gap between .NET 4.0 and the major 4.5 release. Unless you’re maintaining a legacy product that explicitly depends on its targeting pack or portable library profile, you can safely ignore it today. | Yes (via Microsoft Update Catalog), but not
Session expired
Please log in again. The login page will open in a new tab. After logging in you can close it and return to this page.