For example,

usb-device-hid-keyboard-project-1.4-at91sam9261-ek
usb-device-massstorage-project-1.4-at91sam9261-ek

are password protected.

Who knowns the password?

I had the same problem and got this reply from Atmel tech support (its a windows bad error report when unzipping - you think they could have reported too long filename instead of password required):

Hi,

There are no passwords but this is an issue of your unzipper due to a too long path name.
Unzip the same package in your root directory (C: )

Best Regards,
Frederic Boyer
ARM General Support

PS winzip has the same problem but at least it reports the long filename

Thank you very much for the info! Has been busy doing something else. Thank you!