At the top of my InBox listing I have the command:
Click here to enable Instance Search

When I search files for text I'm using the older method. Indexing Service is
disabled.

Is the Instant Search in Outlook related to Indexing Service.

If so, how can I get Outlook to stop asking - others use my machine and I
afraid someone will click it.

If not, is there a down side to using Instant Search?

Thanks