You must be satisfied
Hamilton Laboratories is committed to your complete satisfaction. If you buy Hamilton C shell and you aren’t satisfied for any reason – or even for no reason – in the first 90 days, we'll give you your money back. Updates are free for the first year and inexpensive after that. We want you to be happy.
If you have a question, call or send email. We promise a prompt response. If you need help setting up or using Hamilton C shell, we will spend whatever time it takes to get you going.
If you find a bug, we will fix it. If you can help us recreate it, we can probably fix it within a few days. The best way to do that is by emailing us a .zip file containing a sample .csh script and any sample data needed to demonstrate the bug.
(When emailing a .csh script, you must put it inside a .zip file or it will be stripped from your message by Outlook and other popular mail programs because C shell scripts are considered executables.)