I have been trying to install VisualCron 5.5.6 without success. The VC service will not start on the server. The server environment is Windows 2003 Std. I also tried to install it on a Windows XP desktop and had the same problem. Maybe I have a bad download? I was able to get 5.5.6 working by upgrading from 4.9 to 5.5.6, but a new install of 5.5.6 would not work and an upgrade from 5.5.5 does not work.