how to setup 'Open with...' program?

[visitor@]

At the comparison panel, click the right mouse will come up with 'open (enter)' and 'open...', where can we setup 'Open with...' program?..thanks

[TGRMN Software]

Hi, the "open with" option for a file is managed by Windows.
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TGRMN Software Support
http://www.tgrmn.com
http://www.compareandmerge.com

[visitor@]

[TGRMN Software]

The Windows "Open with..." list is managed by Windows, not by ViceVersa. Ways to add, change or remove items:

To add a program to the list
- Right‑click the file, choose Open with -> Choose another app.
- If the program is not listed: Browse to it with "More apps" -> "Look for another app on this PC" and select it.

To make a program the default for that file type
- Right‑click the file -> Open with -> Choose another app -> select the program and check "Always use this app to open .ext files".
- Or Settings -> Apps -> Default apps -> Choose default by file type and pick the program for the extension.

To remove unwanted entries from the Open with list (Windows GUI options are limited)
- Use Settings -> Apps -> Default apps to change the default association.
- To remove stray entries shown in the Open with list you can edit the registry (advanced users):
- Open regedit and back up the registry first.
- Check these keys and remove the unwanted entries under the relevant file extension (.ext):
HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\<.ext>\OpenWithList
HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\<.ext>\OpenWithProgids
- You may also need to remove or edit entries under HKEY_CLASSES_ROOT\<progid>\shell\ or context menu handlers if a program added a custom handler.
- After changes you may need to sign out/sign in or restart Explorer for the list to update.

If you only want to clear incorrect default associations for a file type
- Delete the UserChoice subkey for that extension:
HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\<.ext>\UserChoice
(only if you know what you are doing; back up registry first).

If you prefer a safer GUI approach
- Use Settings -> Apps -> Default apps -> Choose defaults by file type, or use Control Panel -> Default Programs.

Note: Always back up the registry before editing it.
_________________
--
TGRMN Software Support
http://www.tgrmn.com
http://www.compareandmerge.com