Charlie asked,

>... I locked the stack from within Hypercard so I can't get into
>it to extract or modify the code. Do any of you know how to hack the stack
>to eliminate the lock/password?

Best:
<http://www.umich.edu/~archive/mac/util/hypercardutil/devilsworkshop1.0.sit.hqx>

Runners-up:
<http://members.aol.com/hcheaven/library/library_tools.html>
<http://www.umich.edu/~archive/mac/util/hypercardutil/deprotectstack.sit.hqx>
<http://www.umich.edu/~archive/mac/util/hypercardutil/stackwaredetective.hqx>