Microsoft has rolled out .NET Framework 4.5 recently. If you programming with C#, Visual Basic and F# or writing Windows apps, then chances are you require the latest version of .NET Framework.
At the Microsoft Download center, the default link is the online installer. This means you download the installer and it needs to be connected online to install .NET Framework on your computer. That sometimes is inconvenient especially if your are on a slow connection or want to use the installer on other computers. Also sometimes you might want to install .NET Framework 4.5 on a computer that is not connected to the internet.
This is why it is a better idea to download the offline installer. The offline installer is 50MB and installs the full framework.
Microsoft .NET Framework 4.5 Requirements
Download Link: Offline Installer Microsoft .NET Framework 4.5 (x86 and x64)
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