Net Framework 2.0 And 3.0 Offline Installer -

Modern Windows versions handle things differently. .NET 3.5 (which includes 2.0 and 3.0) is already "part" of the OS, but it is turned off by default.

dism /online /enable-feature /featurename:NetFX3 /source:D:\sources\sxs net framework 2.0 and 3.0 offline installer

: Using older versions of .NET can expose your system to vulnerabilities. Only install these if a specific legacy application requires them. Modern Windows versions handle things differently