The closest thing would be a custom application (that your users have to install/you install for them) on each client computer that registers as a protocol handler and parses the provided URL to open some native executable:
If you can guarantee where you're running these instances, you could theoretically "escape" the browser in a safe way using a deeplink.
That is, inside Perspective trigger a navigation event to customApplication://someArguments (instead of http://someUrl).
Then, if the local system has a protocol handler registered (this must be done out of band, you cannot do this on the page for the reasons Phil called out already), the web browser will prompt the user asking if they want to use customApplic…
((hm i might have replied on the wrong topic xd))
You can install an uri (on windows) that works for browsers (not the app)
You gotta unzip and run it (as admin) on every client pc tho
registerExplorerURIScheme.zip (286 Bytes)
this one goes like so, i use the link component to open in a new tab:
explorer:C:\yourfile.txt
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