i answered the first and the third questions...
I use CProxy to access the internet, meaning that I won't have internet access if I don't use CProxy. That's why I need to use this app to have an internet access.
I don't understand the 2nd question. So, please forgive me.
Please tell me if avast is incompatible with CProxy. The answer to that question is just what I wanted for now. If it's compatible, then there's some kind of conflict with other softwares in my computer, whether installed or uninstalled softwares. If it's incompatible, then I'll have to leave avast, which I will be very very sad because I love avast.
btw, thank you for trying to help me...