# 404 Error for MP even with http Handler added to web.config **URL:** \ **Category:** .NET\ **Created:** [March 3, 2014, 10:05am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234 "2014-03-03T10:05:46Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![dgreenuk](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/dgreenuk/32/970_2.png) [@dgreenuk](https://community.miniprofiler.com/u/dgreenuk)\ **Post date:** [March 3, 2014, 10:05am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/1 "2014-03-03T10:05:46Z")
I have installed Umbraco v6.1.6 which uses mini profiler. The profiler works on my dev machine but will not work on the server (IIS6). To discount my site been the issue I installed a clean install of Umbraco and tried to run the profiler but was getting the 404: [http://profilertest.com/mini-profiler-resources/includes.js?v=xwYPDDH1blvqmxgsBweNC++H7CFU3KGQ+zFcVlJPsXw=](http://profilertest.com/mini-profiler-resources/includes.js?v=xwYPDDH1blvqmxgsBweNC++H7CFU3KGQ+zFcVlJPsXw=) (the above is not a real domain but an example) So i added the http handler to the httpHandlers in the web.config but still getting the issue. I also tried adding all the mini profiler files to my deployment but i started getting other errors then (jQueryMP is not defined in includes.js) Can i first check MP is compatible with IIS6 and secondly what do i need to check next? Stumped at the moment as cant find any other possible solutions from googling etc… Thanks Damian ---
**Author:** ![dgreenuk](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/dgreenuk/32/970_2.png) [@dgreenuk](https://community.miniprofiler.com/u/dgreenuk)\ **Post date:** [March 3, 2014, 10:26am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/2 "2014-03-03T10:26:54Z")
I removed the validate attribute from the web.config handler and got this message: System.Web.Routing.UrlRoutingModule does not implement IHttpHandlerFactory or IHttpHandler So i googled and tried changing UrlRoutingModule to UrlRoutingHandler The IHttpHandler error went away but back came the includes.js 404! ☹ ---
**Author:** ![dgreenuk](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/dgreenuk/32/970_2.png) [@dgreenuk](https://community.miniprofiler.com/u/dgreenuk)\ **Post date:** [March 3, 2014, 10:40am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/3 "2014-03-03T10:40:38Z")
Sussed it! You need to go into IIS and add a wildcard mapping. Soon as i added this i got the mini profiler. 😄 Now to check nothing else has broken. You can also remove the handler once the wilcard mapping is in place. ---
**Author:** ![jnfsmile](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/jnfsmile/32/968_2.png) [@jnfsmile](https://community.miniprofiler.com/u/jnfsmile)\ **Post date:** [March 26, 2014, 7:46am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/4 "2014-03-26T07:46:45Z")
Hi, Can you say what `.dll` it was that you added as wildcard? What it’s path is? Doesn’t seem to be helping me…☹ ---
**Author:** ![dgreenuk](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/dgreenuk/32/970_2.png) [@dgreenuk](https://community.miniprofiler.com/u/dgreenuk)\ **Post date:** [March 26, 2014, 2:23pm UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/5 "2014-03-26T14:23:43Z")
Hi, Yes it the main aspnet dll that fires for other [asp.net](http://asp.net) files: c:\windows\[microsoft.net](http://microsoft.net)\framework64\v4.0.30319\aspnet\_isapi.dll That is for a 64 bit server. You will need the 32 bit version otherwise. Hope that helps. Damian ---
**Author:** ![jnfsmile](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/jnfsmile/32/968_2.png) [@jnfsmile](https://community.miniprofiler.com/u/jnfsmile)\ **Post date:** [March 30, 2014, 6:01am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/6 "2014-03-30T06:01:34Z")
3.5 build. running on 3.5 framework too. I tried the same with the v2.0… but it didn’t help yet ---
**Author:** ![John](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@John](https://community.miniprofiler.com/u/John)\ **Post date:** [April 1, 2014, 3:11pm UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/7 "2014-04-01T15:11:01Z")
Is this an IE 8 issue? In December, Chrome was said to not suffer this problem. IE 8 only? ---
**Author:** ![jnfsmile](https://sea2.discourse-cdn.com/flex016/user_avatar/community.miniprofiler.com/jnfsmile/32/968_2.png) [@jnfsmile](https://community.miniprofiler.com/u/jnfsmile)\ **Post date:** [April 7, 2014, 4:38am UTC](https://community.miniprofiler.com/t/404-error-for-mp-even-with-http-handler-added-to-web-config/234/8 "2014-04-07T04:38:47Z")
Nope, browser irrelevant.