When in doubt, check the object browser: Press ALt+F11 to open the VBA
environment in Outlook, then press F2. If you do, you'll find that the
UserProperty object has no Enabled property.
You're trying to change the value of a property of a *control* not an
Outlook property. See http://www.outlookcode.com/d/propsyntax.htm#unbound
for the correct syntax for referring to a control on an Outlook form.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> I am trying to change the property of a check box and not
> getting the results I need.
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>
> Thanks.