Get Associated application by Extension using Delphi

TIPS :: Do a search in the Registry for your extension in HKEY_CLASSES_ROOT, after finding it get its default value and then do a new search for it. Now, read the Shell\Open\Command key's default value.

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Related:

• Associate a filetype (extension) with your application
• How to Run your Application by Double-Clicking on a File (Register Extension)
• Activate a Running Instance when a User Opens an Associated File (By Extension)