New script map in IIS

Are we allowed to add new script map in IIS?
For example we have .asp, .aspx e.t.c so can we add a new one like .wgx ?

We allow in some cases to map to asp or asp.net engines, but we do not allow to map to an EXE/cgi file.

Good to hear that Stephen. And yes I was talking about mapping to ASP.Net engine and not some EXE or CGI file.
Actually I was interested in this product

SourceForge.net: Visual WebGui Enterprise Manager

It’s a web based SQL Server Manager with AJAX and maps .wgx to ASP.Net engine.