Comodo Firewall blocks trusted application

I’ve been using Weather Watcher v5.6.53 in Windows XP SP3 without any issues (with NIS2008), but now when I installed Comodo Free Firewall (I had NIS2008 before with no issues) Weather Watcher is unable to connect even though I gave ww.exe and dl.exe “Trusted” application status within Comodo Firewall’s settings. If I uninstall/reinstall Weather Watcher it won’t fix the issue, if I uninstall Comodo, Weather Watcher will connect normally. How can I fix this so to be able to use Weather Watcher in conjunction with Comodo? (All of my other applications that require Internet Access are working fine, except Weather Watcher). Thanks for your feedback.