Not prompted for key passphrase when not using Pageant

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Set up a putty session with a pass-phrase protected key
2. Don't start Pageant (or don't add the key to Pageant)
3. Try to start the tunnel with ptman

What is the expected output? What do you see instead?
Instead of prompting you for the pass-phrase pageant just lets plink time out 
waiting.

This can be fixed by editing the PuttyLink.cs file and changing line 145 to 
include the word "passphrase" in the check:

else if (data.Contains("password") || data.Contains("passphrase"))

Original issue reported on code.google.com by [email protected] on 2 Oct 2011 at 8:00