How to programatically mail-enable an Exchange public folder

I'm feeling guilty for not having posted regularly much[1] lately, so just going through an archive of useful little tidbits I've archived over the years, I ran across this one:

Q: What is the name of the attribute that controls whether or not a public folder is mail-enabled?

A: Set PR_PF_PROXY_REQUIRED to true, and PR_PUBLISH_IN_ADDRESS_BOOK to true to - you'll never guess on your own - show the entry in the address book.

The process of getting the proxy object created and subsequently assigned an email address is a very asynchronous process, don't expect delivery to the public folder to work immediately after setting these props.[2]

[1] I have two kids and a full time job. Nuff said.
[2] I stole this sentence verbatim from an awesome dev.