Legacy version for older systems like Windows XP or Server 2003. Download 4.0 How to Install Using an Offline Installer
Since version 4.3 does not exist, you likely need one of the following official versions. Each of these includes an offline installer: Link to Official Microsoft Download The latest and most stable version for modern Windows. Download 4.8.1 .NET Framework 4.5.2 A common requirement for older business software. Download 4.5.2 .NET Framework 4.0 net framework 4.3 offline installer
Faster for multiple deployments since you only download the file once. Legacy version for older systems like Windows XP