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Missing ASP.NET Tab in IIS Management Console (the solution)

Remember this problem ? Well, Tom (and Jeremy and Vandana) has a solution     Carlo Quote of the day: There is no abstract art. You must always start with something. Afterward you can remove all traces of reality. - Pablo Picasso Read More...
Posted Wednesday, April 23, 2008 12:13 PM by carloc | 1 Comments
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Disable recycling in IIS 7? Use AppCmd

I stumbled on this while trying to repro a remote debug problem for a customer: as you might know from this post from Johan, debugging ASP.NET on IIS7 needs some special care about the application pool recycling policy otherwise if you’ll not be fast Read More...
Posted Tuesday, April 22, 2008 4:00 PM by carloc | 1 Comments
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LogParser scripts for various occasions...

I've been working again with LogParser lately to extract some statistics for an IIS server which was facing a suspicious activity from the outside world: they were getting literally thousands of requests from a bunch if IP addresses to their page to request Read More...
Posted Wednesday, February 06, 2008 3:56 PM by carloc | 1 Comments
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Ajax resource intermittently not accessible (http compression)

A few days before Christmas I had a case where the customer was intermittently getting troubles with his javascript/Ajax resource; as usual everything was working fine on the development machine, but when moved on the production server the application Read More...
Posted Monday, January 21, 2008 4:18 PM by carloc | 4 Comments

Corrupt installation? Do not repair Visual Studio

(Unable to start debugging on the web server. An error occurred that usually indicates a corrupt installation. If the problem persists, repair Visual Studio installation via 'Add or Remove Programs' in Control Panel)   I saw this happening on a Vista Read More...
Posted Wednesday, December 05, 2007 5:44 PM by carloc | 0 Comments
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The error indicates that IIS is not installed on the machine. Please install IIS before using this tool

Yesterday I was working on a sample project got from a customer, when Visual Studio 2005 showed this dialog:   Ok I thought, let's fix the application mappings . I did, but got the following:   What? Are you kidding me? Of course IIS is installed, Read More...
Posted Saturday, November 24, 2007 12:39 PM by carloc | 3 Comments

HTTP error 406 with .NET Framework 3.0

I got a couple of cases about this problem recently... Imagine this scenario: you install the .NET Framework 3.0 on your client, and then browse an ASP.NET based web site; you get a 406 HTTP return code from the web server, which means "Client browser Read More...
Posted Friday, November 02, 2007 1:34 AM by carloc | 2 Comments

Server Error 500, unable to create new session

I saw this problem reported on a Windows 2000 Server (IIS 5.0), I've not checked if the same could also happen on IIS 6/7... The application is build on classic ASP pages and the error appeared about once per day on a test server; when browsing the user Read More...
Posted Monday, July 30, 2007 4:53 PM by carloc | 0 Comments
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Visual Studio debugger conflicts on port 80

I personally got this problem on my laptop a while ago where IIS and Skype where involved, and even if this time the customer reported two different applications involved (Visual Studio 2005 and Cisco IP Communicator), the symptoms where the same: with Read More...
Posted Sunday, July 22, 2007 4:37 PM by carloc | 3 Comments

Driver's SQLAllocHandle on SQL_HANDLE_DBC failed

Another weird one I got this afternoon. A colleague from the Sql team asked my help about what looked an authentication problem is customer's web application, while trying to connect to a Lotus Notes database: in short, the customer was developing his Read More...
Posted Friday, July 20, 2007 11:14 PM by carloc | 2 Comments
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Unable to "InitializeSecurityContext"?

Sometimes having fortune at your side can really save you the day (to say the least), and in developer support it can save you hours (of not days) of troubleshooting... With this premise, a couple of weeks ago I was helping a colleague from the Sql Server Read More...
Posted Wednesday, July 18, 2007 10:48 PM by carloc | 1 Comments
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Quick hint: "Server Unavailable" error

I stumbled into this error this afternoon, while working on a repro for a customer: if you need to have your application pool running under an account other than the default NETWORK SERVICE, and when you try to browse your application you get a nasty Read More...
Posted Friday, June 22, 2007 12:05 AM by carloc | 0 Comments
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The importance of breaking changes

Yesterday I closed a case about a migration issue from ASP.NET 1.1 to 2.0. The customer built this application based on ASP.NET 1.1 to generate some PDF documents on the fly on the web server, and stream the content to the client for reading; the application Read More...
Posted Friday, May 18, 2007 8:48 AM by carloc | 3 Comments
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It's raining Beta3 :-)

If a picture is better than 1000 words, what about a 3 minutes video? Lot of new stuff is coming for web developers: take a look, smile and download And here is a post about what's new in IIS7 on this release.   Cheers Read More...
Posted Thursday, April 26, 2007 8:18 AM by carloc | 0 Comments
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Integrated Authentication does not work with domain name

  This is an easy one, but we got cases like this every now and then... maybe worth repeating. If you use Windows Integrated Authentication in IIS, everything works fine if you browse "http://netbiosname", but Integrated Authentication Read More...
Posted Thursday, April 19, 2007 7:49 AM by carloc | 2 Comments
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