I am using this Interaction.AppActivate method only do the application?

Question

I am using  this Interaction.AppActivate method only do the application on top by other application(when it's not in minimize mode) but it won't restore the application that's minimize in taskbar. I want to check to the process if that application is running then if so it will pop up/restore and be on top in any other applcation.so how to rectify this problem