Compression o IIS 5.0

Hi all

I've an IIS 5.0 server (sp3). I've activated the built-in compression on
this server. I've also modified the appropiate Registry entries to allow
POST compression - as it's explained in the Knowledge Base article.

It works ok, except for some requests that will not compress. Watching at
the data exchange between the client IE and the IIS server, the only
difference I see for those requests not beeing compressed is that the POST
command for non-compressing responses is something like ...

POST http://....../application.dll/COMMAND

and the ones that work correctly are something like ...

POST http:/...../application.dll

So it seems that the presence of the final "/COMMAND" tag makes IIS to
suppress the compression of the response !

I know that you can modify the IIS metabase to allow other than ".dll",
".exe", ".asp" extensions to trigger compression ... but would IIS allow me
to add ".dll/COMMAND" in the metabase as such an extension ? And would then
work as expected ?

Thanks in advance