Hello, I noticed this problem, also in the VB6 sample of the latest version of your OfficeViewer component:

Open an Excel file

Now from my documents (external of the sample program) I try to open another Excel document, with classic double-click; an Excel window show up, but it’s empty and seems “locked” by the OfficeViewer component. I can’t access or close this window until I close the preview.  

There are something that I can do?

Then I tried to open another Excel file externally, from my PC (directly with double click), but attached is the result; the excel windows seems locked, can’t move / close / access.