Execute code in another process?

[C# Programming]

I'm writing an Outlook add-on but some of the things I need to do to the Outlook window are only allowed to be done by the process that owns the ******** Is it possible for me to execute a line of code from Outlook's process?

Have you tried the Krypton Toolkit? http://www.componentfactory.com/free-windows-forms-controls.php