Originally posted by Dr Unne
You need to have a space between the <-- and the #include though, and between the filename and the --> I'm pretty sure.
You actually don't need the space between <-- and #include.

Anyway, if you have already tried uploading the file and it doesn't work, then that probably means that the webserver you are using does not have SSI enabled.

What happens when you try to view the uploaded links.shtml? Do you get a
[an error occured while processing this directive]
message? If so, then SSI is enabled, but the webserver encountered some problem when trying to include the other 3 html files.
On the other hand, when you load the page in your browser, if the page doesn't do anything and still has the &lt;!--#include virtual=""--&gt; in it, then it means that SSI is not enabled on the webserver you are using.