I am using the Smart mailer extension (ASP) to send out a newsletter
it has been working fine up to now
suddenly it has stopped and I am getting the error

msxml3.dll error '80040154'
Class not registered
/ScriptLibrary/incSmartMailer.asp, line 1222

line 1222 -1224 are
objHttp.open "GET", SM_Url, false
objHttp.setRequestHeader "User-Agent", Request.ServerVariables("HTTP_USER_AGENT"
objHttp.Send ""

My host has said they re-registered the dll

Could somone tell me what else I could tell them to do?
Or is there something that I can do in the code to make it work?

I have checked the forums here and nothing seems to apply, neither does a google search

Thanks