If the form runs code when you use Run This Form in design mode, but doesn't run code after you have sent or saved an item using the published form, you probably have done something to "one-off" the form. Outlook will not run code on one-off forms; see http://www.outlookcode.com/d/secforms.htm for more information on this issue.

To ensure that a form does not one-off:

-- Make sure the "Send form definition with item" box on the (Properties) tab of the form is *not* checked. [1]

-- For in-house corporate use with Exchange Server, publish the form to the Organization Forms library or a public folder's forms library, as appropriate for your application.

-- For collaboration via the Internet, publish your form to your Personal Forms library. Save it as an .oft file and send it to other people who need to use it with instructions to publish it with the same form name that you used.

-- Set the Forward action on a custom form's (Actions) page to the published custom form.

Many other things can cause one-off forms. If the above steps don't work on a new item created with your form, see http://www.outlookcode.com/d/formpub.htm#oneoff for other possible causes.

[1] Whenever you publish a message form, Outlook will suggest that you may want to check the "Send form definition with item" box to ensure that the recipient will have the form, especially if you're sending to someone via the Internet. In the current Outlook security environment, this suggestion is obsolete. Ignore it unless your form has no code behind it.