Outlook has long been able to do this with custom forms. See http://www.outlookcode.com/d/forms/index.htm for a link to an example.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Every company needs to keep track of approvals and be able to post vacation
> request on a calendar to view.
[quoted text clipped - 13 lines]
>
> http://www.microsoft.com/office/community/en-us/default.mspx?mid=52034be1-9a2f-4
482-aa7f-952b4ff5e44d&dg=microsoft.public.outlook.calendaring
Our agency uses a custom form that works very well for this. Design your
own form that complies with your vacation request procedure. Just drag and
drop the approved form to the calendar to show it in a calendar view. Use a
Public Folder if you want.
If you wish, I can post our form here for a reference.

Signature
Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. Due to
the (insert latest virus name here) virus, all mail sent to my personal
account will be deleted without reading.
After furious head scratching, SGG331 asked:
| Every company needs to keep track of approvals and be able to post
| vacation request on a calendar to view.
[quoted text clipped - 11 lines]
| button, follow this link to open the suggestion in the Microsoft
| Web-based Newsreader and then click "I Agree" in the message pane.
http://www.microsoft.com/office/community/en-us/default.mspx?mid=52034be1-9a2f-4
482-aa7f-952b4ff5e44d&dg=microsoft.public.outlook.calendaring