Is There a Compatibility Issue with the Companion App on Windows or Edge Version?

[qkw0429]

Your question

Hi,
I'm facing an issue where the extension on Microsoft Edge fails to detect the companion app.
I've reinstalled the extension and coapp, reboot computer for several times but didn't work. Also I've checked the registry and I think there's no problem. Below is the coapp info and registry query.


However, the coapp recognition works fine on another computer. I installed the coapp in the default path on both computers. So the difference I can think between the two computers seems to be the Windows version and the Edge version.
The problematic computer is on windows 10 64 bit with edge version 133.0.3065.69 (latest).
And the fine computer is on windows 11 64 bit with edge version 131.0.2903.51.
Should I downgrade the edge version?

Addon & CoApp version and details

--------------------- Details for problematic computer ----------------------
version: 9.3.0.2
target: microsoft
channel: stable
lang: ko
coapp: {"error":"Failed to start native messaging host.","found":false}
license: {"unset":true}
platform: x86-64 win
UA: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 Edg/133.0.0.0
{
"view_options": {
"all_tabs": false,
"hide_downloaded": false,
"low_quality": false,
"show_button_clean": true,
"show_button_clean_all": false,
"show_button_convert_local": false,
"sort_by_status": true,
"sort_reverse": false
},
"open_count_store": 1
}

------------------ Details for working computer ---------------------
version: 9.3.0.2
target: microsoft
channel: stable
lang: ko
coapp: {"found":true,"new_version":false,"path":"C:\Program Files\DownloadHelper CoApp\vdhcoapp.exe","version":"2.0.19"}
license: {"unset":true}
platform: x86-64 win
UA: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 Edg/131.0.0.0
{
"view_options": {
"all_tabs": false,
"hide_downloaded": false,
"low_quality": false,
"show_button_clean": true,
"show_button_clean_all": false,
"show_button_convert_local": false,
"sort_by_status": true,
"sort_reverse": false
},
"open_count_store": 6,
"successfull_dl": 1
}

[Mattmjs]

I wouldn't think so, see this #1731 for a similar issue which got resolved.

[Mattmjs]

For testing purposes on Windows 10, have you tried if Firefox or Chrome will see the companion app.

[qkw0429]

Yes I did. But they neither recognized the companion app.

[Mattmjs]

That tells me something went wrong with the install of the companion app. Uninstall then reinstall the companion app.
But first close all browsers that are running. One thing I've observed a few times is that even when Edge is not in use
there are several Edge processes running in the task manager. If you see any use end task.

[qkw0429]

I really appreciate your advice. I'll try it in few hours and tell you the result. Have a nice day!

[qkw0429]

I used revo uninstaller to uninstall remaining registries and folders or files and reinstalled the companion app. Also stopped the Edge processes including Edge process and Edge update process. But it didn't work. It seems that the only option is to keep reinstalling whenever I have time or wait for an update.