Custom protocol handler does not work in MS Edge in Win10

[Volodymyr]

We register custom protocol handler for our application.

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp]
@="URL: TestApp Protocol"
"URL Protocol"=""
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell]
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell\open]
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell\open\command]
@="\"wscript\" \"C:\\Users\\user1\\AppData\\Local\\Programs\\TestService\\CustomTestProtocolHandler.vbs\" \"%1\""

Wscript tool used to process the request.

Both Chrome and Explorer can start this custom protocol handler.
But it does not work from MS Edge.
Should I perform some additional configuration to enable custom protocol in Edge?
Or custom protocol handler which uses wscript will not work from MS Edge at all?

If we use cmd file instead of vbs then Edge can use this application protocol. But in this case Command Prompt window is be blinking during each request to this application protocol handler.

 

[Volodymyr]

**UPDATE:**
It works for me if I use "EditFlags"=dword:00210000 value:

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp]
@="URL: TestApp Protocol"
"EditFlags"=dword:00210000
"URL Protocol"=""
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell]
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell\open]
[HKEY_CURRENT_USER\SOFTWARE\Classes\testapp\shell\open\command]
@="\"wscript\" \"C:\\Users\\user1\\AppData\\Local\\Programs\\TestService\\CustomTestProtocolHandler.vbs\" \"%1\""

FTA_OpenIsSafe - 0x00010000
FTA_SafeForElevation - 0x00200000
https://msdn.microsoft.com/en-us/library/windows/desktop/bb762506(v=vs.85).aspx

But I am not sure that it is a correct fix.

 

[Slocknet]

Created an account just to say thanks. This just solved my issue and allows me to now have toast notifications call other toast notifications.

 

[believeincode]

Created an account just to say thanks. This just solved my issue and allows me to now have toast notifications call other toast notifications.

I think the same. Thank you Volodymyr.

 

[ztrhgf]

I think the same. Thank you Volodymyr.

Me too Thank you very much Volodymyr!!! Finally I got to work running vbs script from Windows Toast Notification