Blocking MSN ads

UPDATE(20/06/2007) :

It is just easier to block rad.msn.com
The problem you might face is that this domain has several ip addresses associated with it.

Here is the list I came up with (list correct till 20/06/2007) :

65.54.195.185
65.54.194.118

207.68.178.12
207.68.178.16
207.68.178.56
207.68.178.61
207.68.178.134
207.68.178.153 - UPDATE (20/06/2007)
207.68.178.239
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In order to block MSN ads block the following IP ranges (probably just for MSN, if you can specify it on your firewall):

EuroClick1:
193.149.47.32 - 193.149.47.62
or
193.149.47.32 / 255.255.255.224

EuroClick2:
193.149.47.128 - 193.149.47.255
or
193.149.47.128 / 255.255.255.128

Akamai Technologies:
84.53.134.1 - 84.53.137.255
or
84.53.134.0 / 255.255.252.0

Beware: there is a possibility that if you block these IPs in general some links and services will no work. Especially if they make use of AKAMAI