Open startup folder in Windows 10

To open system level(common) startup location using Run dialog (WinKey+r), type:

shell:common startup

To open current user's startup location:

shell:startup

or from the command line (cmd.exe) do:

explorer.exe shell:common startup

Reference(s):
http://8thstring.blogspot.com/2013/08/open-all-users-start-up-folder-in.html
http://www.winhelponline.com/blog/shell-commands-to-access-the-special-folders/
http://www.osattack.com/windows-7/huge-list-of-windows-7-shell-commands/
http://support.microsoft.com/kb/2806079

Specifying port number as part of IPv6 address

Enclose IPv6 address with square brackets followed by colon and the port. For example to check if port 80 is open on 2607:f8b0:4000:811::2004, do:

c:\> psping -6 [2607:f8b0:4000:811::2004]:80

Reference(s):
http://stackoverflow.com/questions/186829/how-do-ports-work-with-ipv6