OpenVPN Client Export not usable if user certificates contain an apostrophe
Confirmed, from http://forum.pfsense.org/index.php/topic,23169.0.html
I found an unusual situation where I created several user certificates without any special characters ("My Certificate", "His Certificate", etc) and was able to generate OpenVPN client export packages for Windows. Woot! Woot!
The problem: I created a new user certificate described as "Jim's Certificate" and now I cannot see any of the users in the OpenVPN Client Export user list.
Workaround : I removed the offending user certificate and created a new one without the offending apostrophe. I can now see all users with certificates in the Client Export user list.