I am opening an excel file in background from a VB project (or html). As soon as the excel is opened I set visible = false.
As long as the excel file does not have a reference to solver...it works fine, the excel is not visible at all.

However the problem occurs when the excel file in question has a reference to solver. In this case the excel temporarily opens up and then closes.


Has anyone seen this before?.....can anyone suggest a solution where the excel does not temporarily become visible?

Note that it might not be possible for me to set reference to Solver in real time because of permission issues