Windows-Update-Checker: KUC

for certain different Windows-Versions have a look here:

http://windows-update-checker.com/

.NET Framework 4.5, 4.5.1, and 4.5.2

 Installing the .NET Framework 4.5, 4.5.1, and 4.5.2

Have a look here:

http://msdn.microsoft.com/en-us/library/5a4x27ek(v=vs.110).aspx