The online installers is effective so long as we’ve internet online connectivity always. Quite a few us required off-line installers to set up the program on computer systems not connected to internet, in order to save the bandwidth while installing on many computers, etc.
I incldued the links of all .Net frameworks that are directly downloaded from Microsoft servers.Follow the links to download the offline installers of .NET Framework 4.0, 3.5, .NET Framework 3.5 Service Pack 1, .NET Framework 3.0 and .NET Framework 2.0 for both 64 Bits and 32 Bits.
Click below links to download latest .net 3.5 Offline/Standalone/Full download/Direct Installers.
.NET Framework 2.0 Setup
NET Framework 4.5 Setup
.NET Framework 4.0 Setup
.NET Framework 3.5 Setup (click here to know features of .net 3.5)
.NET Framework 3.5 Setup Service Pack 1
.NET Framework 3.0 Setup
.NET Framework Client Profile Offline Installer