Screen sharing default observer mode I have several .vncloc files what contains lines such:

&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"&gt;
&lt;plist version="1.0"&gt;
&lt;dict&gt;
    &lt;key&gt;URL&lt;/key&gt;
    &lt;string&gt;vnc://10.10.10.11&lt;/string&gt;
&lt;/dict&gt;
&lt;/plist&gt;


e.g., double click on the file starts the Screen Sharing.app, and connect to the defined vnc URL.

By default it connects in control mode and I need switch manually to the observer mode.

It is possible to add something to the .vncloc file, to connect in the observer mode by default?
.vncloc files are simply URL pointers to the vnc:// URI scheme. This scheme is not standard and currently does not have a way to delineate the mode of the screen share.