4.5 Developer Pack Download ((free)) - Microsoft .net Framework

, including download resources, key components, and installation requirements based on information available as of April 2026.

| | Details | |-------------|--------------| | Product | .NET Framework 4.5 Developer Pack | | Type | SDK + Targeting Pack + Runtime | | Use case | Building/debugging apps for .NET 4.5 | | Official source | Microsoft Download Center | | Typical file name | NDP452-KB2901907-x86-x64-AllOS-ENU.exe (version dependent) | | Supported VS | 2012, 2013, 2015, 2017 (with updates) | | Replaced by | .NET Framework 4.8 Developer Pack | microsoft .net framework 4.5 developer pack download

To install these packs, your machine should meet the following minimum specs: including download resources

Because .NET 4.5 has reached its end of life, Microsoft recommends upgrading to .NET Framework 4.8 microsoft .net framework 4.5 developer pack download

https://download.microsoft.com/download/2/B/6/2B6B78C3-EAB9-4C33-ABD8-DC29BF064D14/NDP45-DevPack.exe

: Provides built-in documentation and code completion support within your IDE.