How to detect an application is installed on client machine from browser(web page)

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My requirement is when my page load then java script detect an application is installed or not on client machine if application is not installed then open a pop up to download application if application is installed no popup will come

What I have tried:

I have no idea how to solve it

Posted 21-Feb-17 21:33pm

Member 10926587

Updated 22-Feb-17 2:46am

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Patrice T · Answer 1 · 2017-02-21T21:47:00

Quote:
My requirement is when my page load then java script detect an application is installed or not on client

Short answer: Basically, you can't, such action is forbidden for security reasons.
Web pages can't sneak into client computer.
To make client download your app, client have to click on link.

Quote:
Scan and upload documents in browsers | Dynamic Web TWAIN Online Demo[^]
doing the same
After download and installing popup will not come on page refresh

This software is not just a software, it provide a service to the browser, it expand the browser, that is why it can be detected from the browser.

Pete O'Hanlon · Answer 2 · 2017-02-22T02:46:00

Solution 2

You can't do this directly from JavaScript. If you need to detect the presence of an application, you will need an executable running already on the client side. Potentially, you could deploy your application using ClickOnce[^] but this requires the user accepting the app running.

Posted 22-Feb-17 2:46am

Pete O'Hanlon