Quote Originally Posted by bowerstech View Post
In reading through this thread it appears that PayPal micropayments are ...
Um ... micropayments aren't mentioned anywhere in this thread.

Quote Originally Posted by bowerstech View Post
it appears that PayPal micropayments are supported in ZC 1.5.0 by enabling Express Checkout. Is that that case or do I need to configure something else?
Yes, EC supports micropayments. You must provide your micropayments account credentials in the corresponding additional define() statements you'll have to add to your site. Instructions for this are discussed in several other forum threads devoted to the topic of micropayments.
This thread is about an error message #10544, not about micropayments.

Quote Originally Posted by bowerstech View Post
Also, is there a way to get micropayments to work with Standard-IPN?
No.