HTTP 404 when accessing .svc file in IIS

Question

I recently created a WCF service that works fine when tested from Visual Studio 2008. but when I deploy the project to IIS and I try to access the .svc file from IIS, I get this error :

"Server Error in '/' Application.The resource cannot be found.  "

I've been having this issue for the past 4 days .

in the Handler Mappings of IIS Manager, I can see two entries for .svc :

svc-Integrated and svc-ISAPI-2.0

score 116 · Answer 1 · answered Aug 25 '15 at 14:24

116

What worked for me, On Windows 2012 Server R2:

Thanks goes to "Aaron D"

answered Aug 25 '15 at 14:24

Stefan Michev

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By far the easiest option. – BIDeveloper May 12 '16 at 13:27
That worked for me on Win10, Win8.1 desktops and Win2012 server :) Thanks! – Skipper Apr 09 '18 at 07:15
That worked for me on Win10, Win8.1 desktops and Win2012 server :) Thanks! – Skipper Apr 09 '18 at 07:16
2

For some reason, I had to install the feature for 3.5 as well as for 4.5, and via the command line: `dism /online /enable-feature /featurename:WCF-http-Activation45 /all` and also `dism /online /enable-feature /featurename:WCF-http-Activation /all` – Rocklan Aug 20 '18 at 23:55
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Works on Sever 2019 as well – Zar Shardan Nov 07 '19 at 20:34
For me, I cannot install .NET 4.5 > HTTP Activation until I install .NET 3.5 > HTTP Activation and Non-HTTP Activation first. – Sruit A.Suk Oct 03 '20 at 13:57

score 78 · Accepted Answer · edited Nov 27 '18 at 10:40

78

You need to add a mapping for the SVC extension to ASP.NET. The easiest way to do this is to run ServiceModelReg.exe -i from C:\Windows\Microsoft.NET\Framework\v3.0\Windows Communication Foundation. You may also need to enable ASP.NET if you haven't already done so.

If you are using Windows Server 2012 or 2016, follow these instructions instead:

WCF on IIS8; *.svc handler mapping doesn't work

edited Nov 27 '18 at 10:40

twoleggedhorse

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answered Apr 09 '10 at 17:04

tvanfosson

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Did you try restarting IIS afterwards? – tvanfosson Apr 09 '10 at 17:44
Do you now have a mime mapping for .svc? – tvanfosson Apr 09 '10 at 17:52
It's not mime mapping- Application Extension Mapping. see http://msdn.microsoft.com/en-us/library/ms752252(v=vs.90).aspx. – Michael Freidgeim May 13 '11 at 05:02
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Important: don't do this on Server 2012 with .NET 4.5 installed. It screwed me up until I then ran ServiceModelReg.exe -ua. See here for the Server 2012 solution: http://stackoverflow.com/questions/11116134/wcf-on-iis8-svc-handler-mapping-doesnt-work – Scott Anderson Mar 01 '13 at 19:45

score 56 · Answer 3 · answered Nov 20 '13 at 19:56

I found these instructions on a blog post that indicated this step, which worked for me (Windows 8, 64-bit):

Make sure that in windows features, you have both WCF options under .Net framework are ticked. So go to Control Panel –> Programs and Features –> Turn Windows Features ON/Off –> Features –> Add Features –> .NET Framework X.X Features. Make sure that .Net framework says it is installed, and make sure that the WCF Activation node underneath it is selected (checkbox ticked) and both options under WCF Activation are also checked.
These are:
* HTTP Activation
* Non-HTTP Activation
Both options need to be selected (checked box ticked).

If I could upvote this more than once I would, this was driving me NUTS, cheers! — Chris W., Feb 10 '15 at 20:18

score 4 · Answer 4 · answered Jul 23 '12 at 10:48

I see you've already solved your problem - but for posterity:

We had a similar problem, and the SVC handler was already correctly installed. Our problem was the ExtensionlessUrl handler processing requests before they reached the SVC handler.

To check this - in Handler Mappings in IIS Manager at the web server level, view the list of handlers in order (it's an option on the right-hand side). If the various ExtensionlessUrl handlers appear above the SVC handlers, then repeatedly move them down until they're at the bottom.

score 1 · Answer 5 · answered Jul 27 '12 at 14:12

I've had the same problem today.

For me, the solution was to go into IIS, right-click on the new Web Site name, select Properties, ASP.Net, and change the ASP.Net version from "1.1.4322" (which it had set as the default) to 2.0.50727.

Once I'd done that, I could right-click on the .svc file, click on "Browse" and see the friendly Service webpage.

score 1 · Answer 6 · answered Feb 01 '17 at 17:05

1

This can also become an issue after enabling IIS 6 Management Compatibility in windows 10. Setting the framework HTTP Activation under WCF Services will fix the problem.

answered Feb 01 '17 at 17:05

Al Nolan

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score 1 · Answer 7 · answered May 20 '11 at 00:14

1

Verifies that you directory has been converted into an Application is your IIS.

answered May 20 '11 at 00:14

esylvestre

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score 1 · Answer 8 · answered Mar 12 '20 at 23:17

None of the above solutions resolved this error for me. I had to set the following in web.config:

system.servicemodel > bindings > webHttpBinding > binding:

<security mode="Transport">
  <transport clientCredentialType="None" />
</security>

I would like to take this opportunity to CURSE Microsoft once again for creating such a huge mess with the .NET Framework and making developer lives so miserable for so long!

score 0 · Answer 9 · answered Dec 09 '14 at 11:25

In my case, the error was caused by incorrect mapping settings in the file applicationhost.config (\System32\inetsrv\config). For some reason, Visual Studio 2013 corrupted it while creating a virtual directory in IIS. The fix was to manually edit the sites section in the file.

score 0 · Answer 10 · answered Sep 10 '15 at 07:30

0

There are 2 .net framework version are given under the features in add role/ features in server 2012

a. 3.5

b. 4.5

Depending up on used framework you can enable HTTP-Activation under WCF services. :)

answered Sep 10 '15 at 07:30

Raj kumar

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score 0 · Answer 11 · edited Sep 26 '16 at 16:33

0

In my case Win 10. the file applicationHost.config is corrupted by VS 2012. And you can get the copy the history of this file under C:\inetpub\history. Then restart IIS and it works properly.

edited Sep 26 '16 at 16:33

Bhargav Rao

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answered Sep 26 '16 at 16:32

phuongdnguyen

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score 0 · Answer 12 · answered Jan 17 '19 at 12:23

0

I had to add the extension .svc to the allowed extensions in the request filtering settings (got 404.7 errors before).

answered Jan 17 '19 at 12:23

martinoss

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score 0 · Answer 13 · answered Mar 10 '20 at 16:38

0

Adding the .svc suffix as allowed in request filtering did the trick for me.

answered Mar 10 '20 at 16:38

Brian King

1

HTTP 404 when accessing .svc file in IIS

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