By default there is only one instance of Everything.
When you run Everything.exe it will check for an existing instance. If an existing instance is found the command line options are sent and processed by the existing instance. If no existing instance is found a new one is created.
To run multiple instances of Everything use Named instances.
By default Everything uses the unnamed instance.
Assign unique names to Everything instances to use multiple instances.
There can only be one instance for each unique name.
To assign a name to the instance:
Use the -instance command line option to specify the instance name when starting Everything.exe.
Everything.exe -instance "ETP Server"
Named instances use unique settings and data.
For example, the named instanced "ETP Server" will use Everything-ETP SERVER.ini as the settings file.
The name of the instance is located in the Everything search window caption and in the tooltip when hovering over the tray icon with the cursor.