I want to use https://blake2.net BLAKE2sp with official fat binary from b2sum utility https://blake2.net/b2sum-bin_20130305.zip I can create BLAKE2sp if i run cmd and manually put commands and file location but this gets to much time for a simple hash check the cmd for manual hash is: C:\Users\Admin\Desktop\b2sum-bin_20130305\b2sum-amd64-windows.exe -a blake2sp "C:\Users\Admin\Desktop\b2sum-bin_20130305\filename.exe" What i want to do is to create a batch file and drag & drop on it the file i want to check the BLAKE2sp hash. How can i change the Start "Drag and Drop" "%windir%\system32\Notepad.exe" "%~1" so it opens with b2sum-amd64-windows.exe no matter where it is located? Batch file and b2sum-amd64-windows.exe will always be in the same folder. @echo off Title Drag and drop a file to open with Notepad Mode con cols=60 lines=3 IF [%1] EQU [] Goto:Error CD /D "%~1">nul 2>&1 && Goto:Explorer_Folder || Goto :OpenFile Exit /b ::********************************************************** :OpenFile <File> Start "Drag and Drop" "%windir%\system32\Notepad.exe" "%~1" Exit /b ::********************************************************** :Explorer_Folder <Folder> Explorer "%~1" Exit /b ::********************************************************** :Error Color 0C & echo( ECHO You must drag and drop a file on this batch program Timeout /T 5 /NoBreak >nul Exit /b ::**********************************************************