From the help manual after installation;
4.1. Getting started
After the installation, go to the Windows [Start] menu, click [Program/Active Wall/Start Service] to start this program. Active Wall tray icon will appear in the task bar:
*** however, the Active Wall icon does NOT appear in the task bar. I had this problem a while ago (older version) and gave up on the software but decided to try it again to see if it would do what I wanted it to... but, same problem, so will probably look elsewhere... didn't find this topic in the forums, so sorry if it has been discussed before.