Hi,
I just installed avast yesterday after a clean wipe and fresh install of all of my computer's software (It was my computer's birthday). When I start Avast home 4.1 I get error message 10048. It says that outgoing mail will not be scanned because another program is using port 25 and I should check the help section on cooperation with other software. I can't find that section or any other way to know if I should just change the port number or if I have some other problem.
I am running XP Pro w/ SP1, I also have IIS 5.1 installed - I've never used it before, but I'm planning on learning how to run a website. I use Outlook Express as my mail program. I don't know of any other programs that use SMTP ports.