Filename as last argument to MVC controller - asp.net-mvc

Question

I have an MVC controller with a single method which contains a few arguments, the last of which is a filename with an extension and it is this last argument which causes issues.
Say the format I wish to create is:
http://example.com/worker/90bef68f718a434bb588120e717fa29c/foo.txt
This URL will 404, however if I remove the period or add a trailing / then the handler is hit and executed normally.
Unfortunately the URL format I am trying to implement cannot accommodate either of these work arounds.
The route is defined as follows:
routes.MapRoute(
name: "Worker Handler",
url: "worker/{guid}/{fileName}",
defaults: new { controller = "Worker", action = "Index" }
);
Some reading suggested changing the url template to include {fileName} to {*fileName}, however that too did nothing to fix this.

Answer 1

I can suggest two solution.
First Use route like this ( FileName and FileExtention in separate argument)
routes.MapRoute(
name: "Worker Handler",
url: "worker/{guid}/{fileName}/{fileextention}",
defaults: new { controller = "Worker", action = "Index" }
);
Another solution is to add following thing in web.config.
<system.webServer>
<modules>
<remove name="UrlRoutingModule-4.0" />
<add name="UrlRoutingModule-4.0" type="System.Web.Routing.UrlRoutingModule" preCondition="" />
</modules>
</system.webServer>
Get Help from http://www.britishdeveloper.co.uk/2010/06/dont-use-modules-runallmanagedmodulesfo.html
Route should be like this.
routes.MapRoute(
name: "Worker Handler",
url: "worker/{guid}/{fileName}",
defaults: new { controller = "Worker", action = "Index" }
);
Hope this help you.