This reinstalls the client for situations where you want to move clients to a different site with a completely different SQL server, etc.
Run this against the SQL database to clean up the database.
Examples of WQL search for systems with or without a particular software version installed. Internet Explorer used for example.
This is a basic example of using the Qualys API v2 from Excel. Function: Login, grab 2 machines (action=list), logout
Given a deployment ID, the shows the failed systems with username and status. Ideal for Path Tuesday remediation, to find the failed systems.
This WQL query shows systems with both Shockwave player 11 and Shockwave Player 12.
This has a lot of intelligence to remove outdated versions, and install the right copy of Firefox. it also supports an exclusion list.