Is it possible to use ISAPI Rewrite to redirect a domain alias to an actual domain?

I.e. I would like to redirect everyone that visits "MyAlias.com" to "MyDomain.com".

So say someone goes to "www.myalias.com/contactus.html", I want it to redirect them to "www.myDomain.com/contactus.html" and actually say that in their browser.

What about redirecting them to a specific page on the domain? is that possible? So if someone types in "www.myalias.com" it will take them to "MyDomain.com/aliasUsers.html".

I have to put some code in the htaccess file right? What would be the syntax to use for these examples?