Messenger service pop ups

[PhilLew]

How do you get rid of these damn things, every one of them seems to be advertising a programme to stop you getting them but I tried one on a 'free trial' and it didn't work. Any ideas?

[Headtime]

This is an extract drom the 'Connected' pages of Telegraph.co.uk

"Windows Messenger, installed and enabled by default in Win XP and 2000, was meant to allow PC users to send and receive messages but it has since been hijacked by spammers and advertisers. To switch it off go to Start > Programs > Administrative Tools > Services. Right 'click Messenger and select Properties then click Stop. Change Startup Type to Disabled and click OK."