The Web Deployment Tool simplifies migration, management and deployment of IIS Web servers, Web applications and Web sites. This is helpful specially in the large enterprises where legacy applications are now ported on IIS 5.1 or 6 to IIS 7. This tools takes care of most of the stuff.

Here is the download link:

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=cfa66d50-90ce-49cb-b021-fefbd7a302ab