IIS 7 and Above
URL Rewrite Module
Rule not working as expected? Use Failed Request Tracing
Last post Nov 17, 2012 07:56 PM by Rovastar
Nov 17, 2012 07:56 PM|Rovastar|LINK
The best way to troubleshoot any problematic rules you may have is to use the Failed Request tracing. I find it helps solve most problems when troubleshooting.
Note: Things don't have to "FAIL" to use failed request tracing. It is the trace that is important.
Here is the guide:
and if there is no option for Rewrite in the option when selecting the tracing then have a look at this article to get it added,