The Microsoft .NET Framework 4.6.1 is a highly compatible, in-place update to the Microsoft .NET Framework 4, Microsoft .NET Framework 4.5, Microsoft .NET Framework 4.5.1, Microsoft .NET Framework 4.5.2 and Microsoft .NET Framework 4.6.
File browsing is not available for remote Packages. Try using the Pull to ProGet option, or the Download Package Option (which will cache the Package) .