#include in ASP

I read in the microsoft documentation that you can
use the #INCLUDE directive to integrate in a pagse
HTML or ASP code from another page.

i tried to use it like that
<!- #INCLUDE FILE="HEADER.INC" ->
where header.inc is a file in the same directory.

but it gives no result. when i look to the source
of the page i see : <!- #INCLUDE FILE="HEADER.INC" ->
the content of header.inc has not been integrated
to my file.

can somone help me ?
thanks