Have a look at the following websites
IIS 7 - How to enable write / HTTP PUT
http://www.winserverkb.com
Why can I upload a file without IIS Write Permission
http://blogs.msdn.com/davi
Main Topics
Browse All TopicsHi There,
I am using XMLHTTP to PUT data onto a server and have just started with IIS7.0 after successfully setting up IIS6.0 & IIS5.0.
I have installed Microosft's WebDAV as part of IIS7.0 setup. When running my PUT command I am getting a 401: Unauthorized error. I am trying to use an ANONYMOUS or predefined login which has read/write access to the folder I am PUTting into.
I am new to IIS in general so does anyone know how to troublshoot this and assist with resolution. Please find attached the IIS log.
Points based on urgency.
Thanks in advance.
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Have a look at the following websites
IIS 7 - How to enable write / HTTP PUT
http://www.winserverkb.com
Why can I upload a file without IIS Write Permission
http://blogs.msdn.com/davi
You will need to have WebDAV installed on IIS 7.0 to access the new WebDAV module
1) In IIS Manager, in the Connections pane, expand the Sites node in the tree, then click the Default Web Site.
2) Double-click the WebDAV Authoring Rules feature.
3) When the WebDAV Authoring Rules page is displayed, click the WebDAV Settings task in the Actions pane.
4) When the WebDAV Settings page is displayed, specify the following options:
- Set Allow anonymous property queries to True
- Set Allow custom properties to True
- Set Allow property queries with infinite depth to False
Have a look at the following websites for more information on installing and configuring WebDAV on IIS 7.0
Installing and Configuring WebDAV on IIS 7.0
http://learn.iis.net/page.
How to Use Custom Properties With WebDAV
http://learn.iis.net/page.
Thread: Anonymous PUT in WebDAV
http://forums.iis.net/t/11
Business Accounts
Answer for Membership
by: wolfman007Posted on 2009-08-17 at 06:00:00ID: 25113858
You seem to be getting a 401.5 error indicating "Authorization failed by ISAPI/CGI application"
om/kb/9438 91
om/kb/9420 78/
see the following website
The HTTP status codes in IIS 7.0
http://support.microsoft.c
401 - Access denied.
IIS 7.0 defines several HTTP status codes that indicate a more specific cause of a 401 error. The following specific HTTP status codes are displayed in the client browser but are not displayed in the IIS log:
401.1 - Logon failed.
401.2 - Logon failed due to server configuration.
401.3 - Unauthorized due to ACL on resource.
401.4 - Authorization failed by filter.
401.5 - Authorization failed by ISAPI/CGI application
401.5 - Authorization failed by ISAPI/CGI application. An ISAPI application or a Common Gateway Interface (CGI) application does not let the request be processed because of an authorization problem. For more information about how to resolve this problem, click the following article number to view the article in the Microsoft Knowledge Base:
Also have a look at the following KB article
Error message when you visit a Web site that is hosted on a computer that is running IIS 7.0: "HTTP Error 401.5 Authorization failed by ISAPI/CGI application"
http://support.microsoft.c