1 - run regedit

2. - locate HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Policies/System
3 - create a new DWORD entry with the name EnableLinkedConnections and value 1.
4 - restart your computer
5 - now you can see and use network drives with these installers or applications.

I found the solution here:

https://social.msdn.microsoft.com/Forums/windows/en-US/f0073f80-cedb-4b7a-96b9-20e4b22c2424/folderbrowserdialog-does-not-show-network-drives-on-windows-8?forum=windowscompatibility