Netstat not working

"netstat -a" is not working in command prompt. I received an error:

netstat is not recognized as an internal or external command

But when I write netstat - a with a deliberate error (extra space before "a"), I receive a help info from this command. It's a strange behaviour. I tried to run this command from it's folder (C:\Windows\System32), but with the same result. How can I run this command?

P.S.: My Windows user is an administrator.


run cmd.exe as an administrator, then try again.

Also, this doesn't belong on stack overflow, SuperUser is the place for such questions.