help with avast web shield exclusions

These MIME types are excluded by default:
image/gif
image/png
audio/*
video/*
I also added in the urls to exclude these file types:
*.zip
*.rar
*.iso
Should I add them in the MIME (example: application/zip) or my settings are right?
Also I want to know if it is alright to add *.jpg and *.jpeg to the list.
Another thing is packers in the web shield, should I leave it to "all packers" or just choose some packers that may be dangerous and what are these packers?

 

I think your settings are all right, MIMEs simplify things by selecting multiple formats.
Infected images are quite common. Not sure how you'll get infected by browsing them though.
The dangerous packers are Self-extracting executables, Droppers, and NTFS streams. The others you have to extract ot run, which Avast would catch by then.

 

If you don't know what a packer is, then I suggest leaving all of the settings at default.

 

Thank you for your help.

 

I know what are packers but I want make my browsing as fast as possible while keeping it safe.files in archives will be scanned by file system shield when I extract them so they don't need to be scanned by web shield.