The main purpose of the digital certificate is to ensure that the application belongs to the entity to which the certificate was issued. The SimplyGen digital certificate does not guarantee that a signed application is safe to run, but rather informs the user that the software was digitally signed by SimplyGen and verified by a trusted Certificate Authority (CA).
About (from SimplyGen)
“Simplygen is a leader in search completion and real time search interaction technologies. Simplygen's publisher solutions help enhance site-search engines with search completion and traffic back tools. Software developers and toolbar publishers implement Simplygen's components in order to improved user interaction and maximize distribution potential. SImplyGen provides browser and Application add ons (PredictAd Add Ons) that enables users to receive website information and additional search and browsing enhancement. You acknowledge and agree that during installation, You may be prompted by the Software to apply changes to your Internet Browser settings. Change the default search engine in Your Internet Browser's built-in search box, if such a search box exists in your browser. Change the default Homepage of your Internet Browser. Add alternative page not found functionality. ”