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Visual Basic path

I have a windows application that uses an external database and calls an external application to run. I need this application to run from a thumb drive so I cannot hard code the path for the database and external application. How do I determine that path for the thumb drive this application will run from and not the traditional location of the temporary folder that windows runs it from.
1 Solution
I would use an OpenFileDialog, select the application you want to run and save the application's path to a file for later retrieval. Once saved on a file, everytime you open your first application, read the file, check if the file exists and run the second application, if the second application's path has changed it no longer exists so open the openfiledialog and browse for it, save the path again to the file and execute the second application.
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