AsiaTech: Microsoft Azure & Development
Signature corrupted after uploading MSI file to WebDav folder on IIS 6
Symptom ======== Download one public MSI file which has digital signature from...
Author: APGC DSI Team Date: 09/08/2009
COM+ Application sometime hangs after moving to Windows 2003 SP2
Symptom ============ Customer has one COM+ application running in Windows 2000 well for long time....
Author: APGC DSI Team Date: 09/08/2009
How to impersonate or delegate a client in WCF
In order to impersonate a client in WCF when WCF service is hosted on IIS6 or above version, we need...
Author: APGC DSI Team Date: 08/27/2009
How to obtain IP address of a client behind proxy via web service
Consider the following scenario: One of my customers would like to know how to obtain IP address of...
Author: APGC DSI Team Date: 08/27/2009
How to process “multipart/form-data” message submitted to BTSHttpReceive.dll
When use a form based web page as the below to submit a XML file to one BizTalk HTTP receive...
Author: APGC DSI Team Date: 08/26/2009
Why my DCOM service reports 10010 error
Symptom Sometimes we will get the following error message for your DCOM service in the System event...
Author: APGC DSI Team Date: 08/26/2009
IIS returns 401 for all ASMX requests with Windows Integrated Authentication
This problem was first found on a SPS server, and then reproduced with simple ASP.Net application....
Author: APGC DSI Team Date: 08/14/2009
How to run .NET component in a singleuse way
We can set SingleUse for public classes in VB6 when creating VB ActiveX component , so that each...
Author: APGC DSI Team Date: 08/13/2009
System.Transaction may fail in multiple-thread environment
When implementing the same System.Transaction concurrently in multiple-threaded environment, for...
Author: APGC DSI Team Date: 08/09/2009
Problem on Updating ASP.NET Web Content in Failover Cluster
ASP/ASP.NET allows you to change web site content when the site is alive on IIS. But recently we...
Author: APGC DSI Team Date: 08/03/2009
ASP.NET web application returns different content to users from different clients.
This is an ASP.NET web site. The problem is some users can see correct page in IE while some others...
Author: APGC DSI Team Date: 07/23/2009
1310 Error: WSUS Server failing on startup
The problem is that the WSUS failed to be started, even after reinstalling it. Symptom In the...
Author: APGC DSI Team Date: 07/17/2009
Various .NET Performance Counter Problems
Problem 1: ASP.NET performance objects disappeared There are two ways to reload the counters again....
Author: APGC DSI Team Date: 07/17/2009
Failed to Open IIS MMC after modified machine.config
To test a customer performance issue, I modified the processModel configuration in machine.config....
Author: APGC DSI Team Date: 07/17/2009
Http Error 500.0 – Internal Sever Error
I have worked on an Http Error 500 issue recently. The issue has been successfully solved but the...
Author: APGC DSI Team Date: 07/16/2009
How to make IISADMPWD work in MOSS 2007 website
Backgound In IIS5.0 or IIS6.0, with the IISADMPWD feature, we can easily change an expired user’s...
Author: APGC DSI Team Date: 07/06/2009
Fail to send PORT command in FTP with NAT
SymptomWhen you connect to FTP server with Microsoft ftp command line client (ftp.exe), you may get...
Author: APGC DSI Team Date: 06/16/2009
The file '/xxx/xxx.aspx' has not been pre-compiled, and cannot be requested
Customer has a pre-compiled web site and it works fine unless access a web service inside a virtual...
Author: APGC DSI Team Date: 06/12/2009
HTTP HEAD Requests get 405 HTTP error when access SOAP Web Services
Most people are familiar with HTTP GET and POST requests. But actually HEAD is another useful verb....
Author: APGC DSI Team Date: 06/11/2009
Troubleshooting MSDTC -- Possible scenarios that cause MSDTC restarting implicitly
As MSTC is the core Transaction Service, its restarting will cause other Transaction depended...
Author: APGC DSI Team Date: 06/01/2009
Windows Firewall setting for IIS Manager remote connection
Consider the following scenario. You have 2 Win2K3 IIS servers, IIS_A and IIS_B and plan to manage...
Author: APGC DSI Team Date: 06/01/2009
IIS_IUSRS lost after promoting to DC on Windows 2008
In IIS7, the built-in group, IIS_IUSRS, has been granted access all the necessary file and system...
Author: APGC DSI Team Date: 05/29/2009
Dump out Commerce Server Site configurations by SQL Query
Commerce Server 2002/2007 site has plenty of configuration sitings, it is not easily to verify them...
Author: APGC DSI Team Date: 05/25/2009
Security Audit Failure 560 caused by Permission settings of MSDTC Service
Built a machine from sysprep and found it has permission issue after setup web application in IIS....
Author: APGC DSI Team Date: 05/22/2009
Connection problem with the old BPA version
Recently, we have a case that BizTalk BPA (Best Practices Analyzer) has connection issue. This BPA...
Author: APGC DSI Team Date: 05/18/2009
How to fix ENTSSO “Access is Denied” warnings on Biztalk Server
Problem Description ================= In this situation, there are two ENTSSO warnings as below,...
Author: APGC DSI Team Date: 05/13/2009
ASP.NET application 100% CPU caused by System.Collections.Generic.Dictionary
It is an ASP.NET application and randomly experience 100% CPU issue. We can’t get a relief...
Author: APGC DSI Team Date: 05/11/2009
Why my account is getting locked out every one hour by Inetinfo.exe?
Recently we got an interesting case: Customer’s domain account would be locked out every one hour....
Author: APGC DSI Team Date: 05/05/2009
How to call COM+ remotely with anonymous user
The purpose of this tutorial is to give you an idea on how to call the COM+ server remotely. I’m not...
Author: APGC DSI Team Date: 05/03/2009
FTP client application encounters slow file download performance issue.
Symptom: The FTP client is a .net client application. It invokes wininet.dll to download files from...
Author: APGC DSI Team Date: 04/26/2009
Kerberos Authentication failed due to time skew
Here is a case we recently worked on about Kerberos authentication issue. Symptoms: Assume there is...
Author: APGC DSI Team Date: 04/26/2009
How to invoke 64bit native COM from 32bit .Net application
Recently, we got an issue from customer. They have a 32bit .Net application and use AdminIndexServer...
Author: APGC DSI Team Date: 04/22/2009
Cannot expand the COM+ list in the Component Services UI due to MSDTC service permission issue
MSDTC is the important Transaction service on window system. COM+ system, or other OLE/XA resource...
Author: APGC DSI Team Date: 04/12/2009
SSL Handshake error when use HTTPS
Install the certificate and set up an Implement an SSL Web Site in IIS. We checked the system and...
Author: APGC DSI Team Date: 04/09/2009
Web Application Memory leakage caused by XML operations - GetElementsByTagName()
Symptom ============= In ASP.NET web application, if you do a lot of GetElementsByTagName()...
Author: APGC DSI Team Date: 04/09/2009
Using System.Net trace to troubleshooting SSL problem in .NET 2.0 application
In .NET Framework 2.0, System.Net has a new feature called Tracing. System.Net Tracing is very...
Author: APGC DSI Team Date: 04/08/2009
Biztalk: No result returns when click the button “Run Query” in HAT [Operations -> Service Instances] or [Operations ->Messages]
Problem: ======= In BizTalk 2004 SP2, no result returns when click the button “Run Query” in HAT...
Author: APGC DSI Team Date: 04/07/2009
Failed to refresh site cache in Commerce Server 2007 due to Kerberos negotiation issue
While we open Catalog Business Tool, and click the “Refresh site cache” link, we may get this HTTP...
Author: APGC DSI Team Date: 04/06/2009
Performance Issue Caused by Crashed Finalizer Thread
Customer had a newly developed .NET web application hosted in IIS 6. They recently experienced some...
Author: APGC DSI Team Date: 04/05/2009
W3SVC 1310 and who changed my worker process affinity
Randomly, IE will show follow error when customer accessing their web application. Meantime, ASP.NET...
Author: APGC DSI Team Date: 04/03/2009
MSMQ Insufficient Resource
There are several cases that got to me regarding the MSMQ “Insufficient resource” error...
Author: APGC DSI Team Date: 04/02/2009
ORA-12154: TNS:could not resolve the connect identifier happened to 64 bit BizTalk Host
Last Friday, Xiao Dong, Bryan and Wei worked out one interesting Biztalk issue, which got resolved...
Author: APGC DSI Team Date: 03/31/2009
Web Application Memory Leakage Caused by BSTR
BSTR is not like a common value type, to use it, it must be allocated and freed explicitly,...
Author: APGC DSI Team Date: 03/27/2009
How does client communicate with MSDTC Cluster?
Recently I got several calls from customers or internal about how MSDTC clients talks to MSDTC...
Author: APGC DSI Team Date: 03/24/2009
IIS 7 compression returns UNKNOWN_ERROR for static types
Recently, we have a problem about compression in IIS 7. IIS keeps returning un-compressed content...
Author: APGC DSI Team Date: 03/23/2009