When I clicked Tools-Forms-Design a Form, then chose my custom form, I got
this error message:

Microsoft Office Outlook cannot provide form scripting support. This
feature is not available. To make this feature available, run Setup again,
click "Add or remove Features" and change the feature to "Run from My
Computer".

Although form is opened, I get this message again on clicking "View Code"
button
Having done all these suggested steps, the same error appeared.

I use Office 2007 on a terminal server. Outlook 2007 on a standalone machine
doesn't have any problems like that. What is the problem of Outlook 2007 in
the terminal server?