[cd34]

typically, I find that

<!--#include virtual="/include/streamt.htm" -->

would work better.

Are you getting the dreaded, An error has occurred processing this directive?

If so, the file could be missing, it might not be readable by the server, the path could be wrong.

If you're not getting an error, check the source to see if the command is inside the html page -- if so, you may not have SSI parsing turned on for .htm pages (many servers don't parse .htm for SSI)

AddHandler server-parsed .htm .html

If it isn't already

If you're using apache 2.x (and you should be)

<FilesMatch "\.htm(l)?(\..+)?$">
SetOutputFilter INCLUDES
</FilesMatch>

If you have access to the raw apache logs, you might have better luck seeing the error message if none of the above helps.