I am using console as my tool for managing mercurial repositories. Wtih classic cmd or Console2 I type:
hg in
Powershell ISE ( integrated scripting environment ) is not the standard Powershell console. The ISE, like the name suggests, is a pretty basic GUI based script writing tool and doesn't support interactive console applications ( try just cmd
on the ISE console and see the error message)
Open powershell.exe, and run the command that you want. It will behave pretty much like cmd. Or alternatively, press CTRL+SHIFT+P in the ISE and run the command there.