> For the complete documentation index, see [llms.txt](https://docs.poshtools.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.poshtools.com/open-source-tools/pscommander/feature-reference/custom-protocol-handlers.md). # Custom Protocol Handlers A custom protocol handler can cause a PSCommander action to be taken from a website or other invocation of the custom protocol. To define a custom protocol, use `New-CommanderCustomProtocol`. The `$args[0]` parameter contains the URL that was clicked. ```powershell New-CommanderCustomProtocol -Protocol myApp -Action { if ($args[0] -eq 'notepad') { Start-Process notepad } if ($args[0] -eq 'calc') { Start-Process calc } if ($args[0] -eq 'wordpad') { Start-Process wordpad } } ``` To use the custom protocol, include regular links in websites. The links invoke PSCommander remotely. ```html Start Notepad ``` ![](/files/-MXhYUvWhquu9z2m5mGI)