.htaccess question: 404 Results from Different Paths on Server vs. Localhost?

I'm moving my app to a new web host and have to resolve some questions about pathing.

On my localhost dev environment, everything is working. Here is the folder layout:

Root Directory 
--System Folder
--Application Folder
--etc.

Here is the folder layout on my web host:

Root Directory
--xyz folder
----System Folder
----Application Folder
----etc.

If I visit the following URL in my browser, I get a 404 error:

http://myDomainName/xyz

Is there a way to correct this via .htaccess?

Thanks very much in advance to all for any