Multiple applications, shared models/libraries/views

[eluser]TheFuzzy0ne[/eluser]
First of all, you should not ever need to change anything in the system directory (unless of course it resides within the application directory). Your Zend directory should be in ./system/application/libraries. You can also extend the Loader class for loading Zend libraries if you so desire.

If you have more than one application, I'd suggest having a separate copy of Zend for each. It will take up a bit more space, but it should be much easier for you to change at a later date if you want, without it having a knock-on effect with the rest of your apps. If you wanted to give several clients a business card, you'd give them a copy each. You wouldn't expect them to share the business card between them, would you?