What is it?

ashwebsv.exe is a file associated with Avast antivirus software.

What does it do?

Both the virus database and the program itself can be updated automatically. The updates are incremental, i.e. only the new or missing data are downloaded, thus reducing the transfer heavily.

More info:

Read more about avast antivirus software

[url=http://www.avast.com/eng/products.html]@ avast.com[/url]