AsiaTech: Microsoft Azure & Development
maxConnection setting may not work even autoConfig = false in ASP.NET
Case background: Recently, we have a case that asp.net will consume the backend web service. We...
Author: APGC DSI Team Date: 02/19/2013
Unable to Compress JSON Result in IIS 7.x
Recently I worked on a problem where there was an issue with MIME type application/json from being...
Author: APGC DSI Team Date: 02/18/2013
IE fails due to some ISPs distort DNS
Case 1 An Intranet portal website is set as IE’s home page. When users are connected to an...
Author: APGC DSI Team Date: 02/18/2013
WCF/MSMQ intermittent MQ_ERROR_TRANSACTION_SEQUENCE error
My customer has an application runs fine until upgraded to WCF 4.0. After that, he received follow...
Author: APGC DSI Team Date: 02/18/2013
IE display blank when browsing certain web page
Actually blank page can be caused by many reasons. I will post more cases about blank web page...
Author: APGC DSI Team Date: 02/03/2013
"Sign in as Different user" doesn't work in SharePoint Portal?
Microsoft SharePoint providers a feature allows you to “Sign in as another user”. I got...
Author: APGC DSI Team Date: 01/24/2013
How to perform a stress test with WCAT tool
Background: Here suppose we have two machines: one is the web server, and another one which...
Author: APGC DSI Team Date: 01/20/2013
Using PowerShell to filter IIS Failed Request Tracing files
Failed Request Tracing is very helpful and easy way to troubleshooting errors, slow requests and...
Author: APGC DSI Team Date: 01/20/2013
Failed to install ASP.NET MVC 1.0 on Windows Server 2012 X64
I got a problem when setting up a very cool environment. I was unable to provision a web worker role...
Author: APGC DSI Team Date: 01/14/2013
How to resolve the “Could not load file or assembly” Issues on Windows AZure Web Sites
One of the most common problems reported regarding Windows Azure Web Sites is “Assembly...
Author: APGC DSI Team Date: 01/09/2013
What does “recommended security and compatibility settings” in IE 9 first-run wizard mean?
By default, each user is prompted to choose 1 of below 2 options at the first run of IE 9. ·...
Author: APGC DSI Team Date: 01/09/2013
A Lightweight web stressing tool
We have some good tools to stressing a web application to evaluate the application’s...
Author: APGC DSI Team Date: 01/09/2013
IE Home page GPO applied with delay
Recently I worked on an IE home page GPO issue: Symptom ======== My customer configured a GPO for IE...
Author: APGC DSI Team Date: 01/03/2013
How to Add Trust Sites into IE before IE10 through Group Policy
Due to IE10 published, I’ll conclude the methods that how to add trust sites in to IE of the...
Author: APGC DSI Team Date: 01/03/2013
Using a Custom FastCGI Handler on Windows Azure Web Sites
WAWS supports PHP by default, and it allows you to configure your own FastCGI as well. Below is the...
Author: APGC DSI Team Date: 12/27/2012
Details PHP error information to help troubleshooting PHP application in Windows AZure Web Sites logs
We used to turn on the Detailed Error Messages to help troubleshooting problems of web application...
Author: APGC DSI Team Date: 12/27/2012
Windows AZure Web Sites FREB trace for slow requests
IIS 7 and later allow you configuring failed request tracing for a Web site, application, or...
Author: APGC DSI Team Date: 12/27/2012
A memory leak caused by msado15.dll
Customer has COM+ application running on Windows Vista SP2. Found memory keeps increasing. After...
Author: APGC DSI Team Date: 12/21/2012
Joomla site -- unwritable logs and tmp folder when hosting on Windows Azure Web Sites
When hosting Joomla 2.5 site on Windows Azure Web Sites (WAWS), you are not able to install plug-ins...
Author: APGC DSI Team Date: 12/05/2012
ASP.NET Case Study: SiteMapResolveEventHandler Memory Leakage
I got two memory leak cases last month and the cause is related to SiteMapResolveEventHandler. The...
Author: APGC DSI Team Date: 11/29/2012
Troubleshoot: Client Calls to DCOM "Server Failed With :A security package specific error occurred. (Exception from HRESULT: 0x80070721)."
Customer has an web application, which needs to call a remote DCOM server. However the web...
Author: APGC DSI Team Date: 10/18/2012
Induced GC happened frequently and caused High CPU when creating Serviced Component in ASP.NET 2.0
Customer reported one High CPU issue while one ASP.NET application is under normal load. Regarding...
Author: APGC DSI Team Date: 09/17/2012
HttpException “Request timed out” error occurs even if executionTimeout attribute is set to a large value
Symptoms ======== My customer receives the following response intermittently: Request timed out....
Author: APGC DSI Team Date: 08/26/2012
Insight WPAD proxy settings on IE
Backgrounds The Web Proxy Auto-Discovery Protocol (WPAD) is a method used by clients to locate a URL...
Author: APGC DSI Team Date: 08/14/2012
Microsoft Easy Assist pops up launch.eas when joining a live meeting session
When you are troubleshooting with a Microsoft support engineer, you could be invited by the engineer...
Author: APGC DSI Team Date: 07/20/2012
Modifying SMSvcHost.exe.config for WCF --- Some common mistakes
Some WCF services may use net.tcp for high-performance communication. These self-hosted services can...
Author: APGC DSI Team Date: 07/16/2012
How to write a custom ISAPI filter to replace http header
Background: UrlScan is usually used to replace/remove http “server” header. But if the...
Author: APGC DSI Team Date: 07/05/2012
A solution to limit specified client certificates to consume WCF service
Background: Suppose there is a WCF service which will be consumed by other parties. The client...
Author: APGC DSI Team Date: 07/03/2012
Troubleshooting Common App-V installation failures on IIS 7.x
Recently have dealt with some cases involving App-V installations failing on IIS 7.x machines so...
Author: APGC DSI Team Date: 06/28/2012
MBSchema.bin.00000000h Corruption caused IIS6 Admin Service failed on starting
Recently I faced one IIS Admin starting failure issue. When customer tried start IIS Admin Service,...
Author: APGC DSI Team Date: 04/19/2012
Office documents will be recognized as .zip file when downloading from IE
Symptom When we try to download some Office documents with OpenXML format(Office 2007 or later), the...
Author: APGC DSI Team Date: 03/28/2012
IE always prompts for authentication when browsing through Proxy server
Symptom Let’s suppose such a scenario: Ø You have a website which enables NTLM...
Author: APGC DSI Team Date: 03/28/2012
Receive Http 403.3 Forbidden when replace file by WebDav
Symptoms Consider the following scenario: Setup WebDav site in IIS7 and set its physical path(i.e....
Author: APGC DSI Team Date: 02/20/2012
Create certificates via commands for testing purpose
I used the following commands to generate some certificates for testing purpose without building a...
Author: APGC DSI Team Date: 02/05/2012
How to develop and deploy ActiveX Control using ATL
Create ATL ActiveX Control 1. In “Visual Studio 2010”, create a new “ATL...
Author: APGC DSI Team Date: 01/31/2012
Dll version may not be updated after some .net 2.0 hotfix is applied
This article only applies to .NET Framework 2.0 SP2, the .NET Framework 3.0 SP2, and the .NET...
Author: APGC DSI Team Date: 01/30/2012
400 bad request when POSTing WebService or WCF request from IE
Symptom Let’s suppose such a scenario: Ø You have a website which enables NTLM...
Author: APGC DSI Team Date: 01/29/2012
How to troubleshoot the “Red Arrow” issue in Component Services (III)
This is an extra troubleshooting plan in additional to plan (I) and (II). Several days ago, I worked...
Author: APGC DSI Team Date: 01/25/2012
Unable to organize favorites in IE8
After applying following Group Policy setting, users are unable to organize favorites in Internet...
Author: APGC DSI Team Date: 12/14/2011
Internet Explorer Fails to open PDF file
Occasionally, Internet Explore fails to open PDF file using Adobe Acrobat Reader and displays a...
Author: APGC DSI Team Date: 12/08/2011
A “404 File not found” issue caused by ASP.NET v4.0 Extensionless URL feature on IIS 6.0
Symptom ======= After IIS is restarted, my customer received “404 File not found” error...
Author: APGC DSI Team Date: 12/07/2011
How to develop and deploy ActiveX control in C#
How to develop and deploy ActiveX control in C# There are lots of documents regarding how to develop...
Author: APGC DSI Team Date: 12/05/2011
IIS 7+ Kerberos authentication failure: KRB_AP_ERR_MODIFIED
KRB_AP_ERR_MODIFIED is a common Kerberos failure message. This means some encrypted Kerberos...
Author: APGC DSI Team Date: 10/25/2011
Why we get the exception “Failed to load viewstate”
Background When we try to add controls dynamically during the post-back request for an ASPX page, we...
Author: APGC DSI Team Date: 10/25/2011