unable to create MSHTML.HTMLDocument COM object

[Steve]

hi ,
i'm trying to get a reference to the DOM of an HTML file by using
MSHTML from asp
set HTMLDoc=server.createObject("MSHTML.HTMLDocument")
but this is not workin , i get an "invalid class string"

now i've looked everywhere for a way around this but i found nothing
knowing that this can be done from ASP.Net ( C# or VB.Net )

i read someWhere on the net that this is impossible, so i tried to
write my own Windows Script Component to handle this but i also
couldn't find any documentation about the MSHTML.dll that could truly
help

so if any one knows somethin that could help, well i could use any kind
of help