Add field to outlook form

I need to create some sort of project that will allow the users fom my company to enter a code for each email that they send out. Is there a way to add a field to an outlook form to allow them to enter in that value?
I also want to be able to search these emails on the server - maybe using google desktop on the server to search based on the code that was entered.
Is this doable? If so how would I go about this?
Any ideas would be greatly appreciated.
Thanks

hi,

what version of Outlook ?

I have 2K and if i select forms from the tools menu and then click on deign a form. you should be able add a combo box in from here.

TBH i have not developed a form in outlook to any great level so i don't have knowledge you realy need.

good luck

David

Does anyone know where I publish a custom outlook form to if I want it to be used every time a new email is sent???
(first I need to test it on my machine and then where would I publish it for company use?)