Thanks Josh, that's great info. I'm working on my first CRM project which is a CRM4 to CRM2011 migration. I was not aware that crmForm was CRM4 specific and essentially deprecated in CRM2011. It looks like I'm on UR11 based on the info at this url: crmdynamo.com/.../crm-2011-update-rollup-release-build-numbers-and-how-to-find-them
UR11 = 5.0.9690.2835
MYUR = 5.0.9690.2840
UR12 = 5.0.9690.3236
Sounds like you're saying the setting is only available on UR13+? Is that correct?