I have to open forms with links one after the other placed v

I have to open forms with links one after the other placed vertically. How to show a progress bar in the middle of the time delay between the form openings.

I am trying to use the code at https://gugiaji.wordpress.com/2012/02/29/backgroundworker-intro-part-1-work-with-progressbar/ , but not able to get it done.

Please help me.

Thank you...