Windows Vista Sonic DLA Vista Incompatibility Issue

Can someone advise me on how to remove Sonic's DLA. I have two programs that list in Programs and Features - Veritas DLA & Veritas Simple Backup that will not uninstall, these are, I believe, Sonic's. I've tried removing every refernce to Sonic or Roxio in the Registry but I keep getting the "Driver Blocked" message when starting Vista Home Premium. the Compatibility adviser directs me to the MS knowledge base where I am directed to Sonics upgrade page to fix the problem by purchasing the latest version of their software. I don't have and don't want their software! Thanks in advance.

 

Thanks Pete,

Revo Uninstaller did the job! Many thanks again.

Paul1688