Flash Player, by default, is configured to check for updates at a predetermined time. Based on your comments, and the fact you're deploying Flash Player using client management software, it sounds like you want to disable this update check. If so, you'll want to deploy a custom mms.cfg file with the setting AutoUpdateDisable=1 (the default setting is 0). The mms.cfg file is located at the following location:
Windows: Assuming a default Windows installation, Flash Player looks for the mms.cfg file in the following system directories:
Macintosh /Library/Application Support/Macromedia
Several of our enterprise customers who wish to disable auto-update deploy a custom mms.cfg file immediately after they deploy Flash Player to their client systems.
The Flash Player Administrator's Guide contains more information for Administrator's who deploy Flash Player within their organization.