Hi Biterider,
The installation of the .lib was not automatic this time, and the make.bat just shouted "error" without explaining the cause. But opening \Masm32\ObjAsm32\Projects\Office\ExcelHost\ExcelHost.asm in RichMasm and hitting F6 gave me sufficient info to understand that I had to copy the lib to its Masm32 folder.
The Excelhost example itself is impressing, compliments :t
For my needs, DDE is enough, though ;-)
Jochen