Access embedded forms controls from VS2005

[Gabriel]

I have an Excel 2003 Workbook. On one Sheet I have several embedded forms
controls. Now I try to fill this worksheet with data via a .NET application
(VS2005, C#, Excel Workbook Template Project). How can I access such an
embedded Forms controls (e.g. "Forms.ComboBox.1") from my C#-code?

Accessing a "normal" cell is a no-brainer, like

Globals.Sheet1.Range["H10", missing].Value2 = "Some value...";

But an embedded control???

Any help is welcome
Gabriel