Closing Excel completely

See the attached vb.net project. It consists of a routine that opens an Excel document searches for a string and leaves Excel open. The problem is that the routine never releases Excel completely. If you close Excel, an instance remains open in the task manager. I want the routine to release Excel completely without closing Excel automatically. It should be left to the user to decide which of the programs (my program or Excel) they want to close first. But no matter which program they close first, when they close Excel, it should be closed completely. I have attached a small project. Right now, if you close my program first, when the user closes Excel, Excel closes properly. But if you close Excel then close my program, an instance of Excel remains open. If you can get it to close, then bid and send me the executable to test. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform VB.NET WinXP