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batch file - relative path in BAT script

Here is my own program folder on my USB drive:

Program
     run.bat
     bin
         config.ini
         Iris.exe
         library.dll
         etc.

I would like to use run.bat to start Iris.exe

I cannot use this: F:/Program/bin/Iris.exe like a shortcut, because sometimes it does not attach as drive F: (e.g. E: or G:)

What do I need to write in the bat file to work regardless of the drive letter?

I tried this in the BAT file:

"inIris.exe"

But it does not work.

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Use this in your batch file:

%~dp0inIris.exe

%~dp0 resolves to the full path of the folder in which the batch script resides.


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