v7.8 not compatible with Windows Vista

[Former user]

Launchbox version: 7.7 Windows version: Vista Ultimate SP2 (64-bit)

The update to 7.8 wants to install .NET Framework v4.6.2, which isn't supported on Vista (the highest version is v4.6).

See https://msdn.microsoft.com/nl-nl/library/8z6watww(v=vs.110).aspx for details.