To skip the WWW domain name to the ISAPI rewrite with WWW domain name

To skip the WWW domain name to the ISAPI rewrite with WWW domain name
I'm going to jump http://abc.com/zb/to http://www.abc.com/zb/.

Note that the path after the domain name should also be taken.

Rewritecond Host: ^abc\.com (. *)
Rewriterule (. *) http\://www\.abc\.com$1 [I,RP]

What's wrong with me writing this?

------Solution--------------------
Explore

Rewriteengine on
Rewritecond%{http_host} ^abc.com [NC]
Rewriterule ^ (. *) $ http://www.abc.com/$1 [l,r=301]

------Solution--------------------
Explore

Reference:

It doesn't matter if you don't have a catalog.
Cases:

Rewritecond%{http_host} ^162100.com [NC]
Rewriterule ^ (. *) $ http://www.162100.com/$1 [l,r=301]

You're not doing this right.

