cannot setup update from local iAVS server

I use this servers definitions file,

[servers]
count=1

[server0]
name=My Server
url=http://localhost/avast

The error is:
Server definition file for ‘main’ (D:\Program Files\Alwil Software\Avast4\Setup\servers.def) is invalid.

How to fix this error?
May be this is becouse there is no signature in this file?

You can not do it this way. You don’t have the update. The update is on the server(s) from Alwil, not on your system/server.

Slavb, did you post in the correct forum? Aren’t you using the server version?

By mistake i posted this question to “avast! 4 Server Edition” forum, and then reposted it here.

I made local mirror using iAVS service.
Is it possible to use this mirror for updating Avast 4.x Pro ?