Q: Powershell scripts don't work by default So I wanted to get started with writing a powershell script. I wanted to start small and simply write a script that substiutes a local file folder as a drive. Pretty simple. I've done it before using the old DOS command tools. 
So the script I wanted to write is:
subst d: G:\CER

Ok, so I try to execute the script in the Powershell ISE by pressing the 'Play' button (i.e. F5)
So what do I get?

File G:\CER\Make_Stage.ps1 cannot be
  loaded because the execution of
  scripts is disabled on this system.
  Please  see "get-help about_signing"
  for more details. At line:0 char:0

How stupid is this, that out of the box execution of powershell scripts are disabled! i.e. By default! Simply incredible that by default this new tool simply does not work.
Powershell has to be the stupidest scripting shell out there.
So apparently I have to register something somewhere (hopefully not with MS). If anyone has an answer as to how to fix this, I'd appreciate it.

A: To fix this, execute:
set-executionpolicy remotesigned

In an elevated PowerShell prompt.

A: To enable scripting, open a powershell prompt as Administrator and run:

Set-ExecutionPolicy RemoteSigned

Here's a blog post from Lee that talks about PowerShell's security principles (http://www.leeholmes.com/blog/2005/08/16/demonstration-of-monads-security-features/).
Keep in mind that most computer will never run a PowerShell script. 

A: Found it:
From the help docs (deeep in the help docs)

LONG DESCRIPTION
      The Restricted execution policy does not permit any scripts to run.

A long article ensues on how to set an execution policy. I'm not impressed so far with PS.
