Running Excel Macro from VB Component

I have a VB script component that opens an excel spreadsheet, populates some cells with data and then calls a macro to run.  This all works fine except that I get a warning box with the following message a few seconds into the macro running on excel (the excel macro isn't complete yet when the message comes up, but does continue to completion).  

Is this something that grasshopper is doing in regards to trying to check the component status while the excel macro is running and is there any way to avoid getting this box?  

Thanks for any help you can provide.