One Saturday morning in late January I picked up my WP7 to discover that my girlfriend had disappeared from my tile screen, and was no longer listed in my people hub. What had I done? Did I forget to call? Did I forget her birthday? Well probably :),...

The Problem You could be encountering this problem if: · You are using an application calling the API “DTCGetTransactionManagerExW” from a thread impersonating a different user to that which the process is...

Unlike on Windows 2003 it is not possible to Reinstall /Rebuild COM+ on Windows 2008 without effectively reinstalling the operating system. Before undertaking such an extreme step the question of why COM+ needs to be installed should be addressed. ...

In the design change between Windows 2003 and Windows 2008, MSDTC running on a cluster should now be able to take advantage of all available MSDTC authentication option when servers are running on the same domain as their MSDTC client servers. There...

The issue normally only occurs when MSDTC is using the same cluster virtual name as SQL. The point of failure seems to be API call to “RegConnectRegistryEx” with the SQL network name. When this specific issue occurs, the call returns HR “0x80070035” ...

In previous blogs I have discussed the use of the SubInACL tool for changing the Access Control Lists (ACL's) of services. The tool can be downloaded from http://www.microsoft.com/downloads/details.aspx?FamilyID=E8BA3E56-D8FE-4A91-93CF-ED6985E3927B&displaylang...

In most cases when flowing a distributed transaction between more than a single machine, a number of Transaction Managers (TM's) will be involved. In Microsoft’s case the TM implementation is the Microsoft Distributed Transaction Coordinator (MSDTC)....

Take the scenario whereby MSDTC is configured on Server A and allows remote administration. This means on server B you will be able to add Server A as a remote machine within the component services management snap-in. Once added you will be able to make...

Take the scenario whereby you have a Windows 2008 Cluster used as a SQL Database Cluster. A common requirement of SQL Server is a Transaction Manager (MSDTC). If your configuration is to have one clustered instance of MSDTC in its own resource group...

On a Windows 2003 cluster you can only ever have one instance of MSDTC running on the cluster at any one time. For this reason and to ensure the running instance of MSDTC is available to all nodes in the cluster, it must be configured as a clustered resource...

On a Windows 2003 Cluster environment, if you have an application (e.g. COM+, winforms etc) which runs under a non-administrative account and trys to start Distributed Transactions (using MSDTC), you may find it will fail. Below are a few of the errors...

The following may help you if your “COM+ Event System” service does not start successfully. The service stops responding (hangs) and the Services Management Console shows the service as "Starting". You may also find some other services such as the "Windows...

This post applies to Windows 2003 Clusters 1) First you should make a careful note of all the MSDTC security Settings within "Component Services" on the currently active cluster node. This can be found by right clicking the "My Computer" node of the...

If you have a Resource Manager (for example SQL Server) that is failing to communicate with MSDTC (that you can see is started and working well), you maybe wondering the best way to troubleshoot such a problem? One possible issue could be that the...

When you wish to flow transactions between a client and a WCF Service there are three key tasks to be considered: 1) The binding that you select (which is set on be both the client and service side), should be transaction aware. Within the configuration...

In both Windows Vista and Server 2008 there is now no longer a checkbox to enable TIP transaction. More information regarding a background of TIP can be found at: http://msdn2.microsoft.com/en-us/library/ms679484(VS.85).aspx . TIP is something that...

In both Windows Vista and Windows Server 2008 the administration of MSDTC is a little different than Windows 2003 SP2 and Windows XP SP2. On a standalone machine, the difference is only in the layout of the options available, and with the exception of...

Since writing my last post, I thought it would be good to have some more information about how to actually embed a manifest as part of the build process in Visual Studio. Unmanaged Projects Embedding a manifest file for an unmanaged project: simply...

Problem Since upgrading to Windows 2003 SP1 or Windows Vista, applications that depend on the components in external manifest files, stop working. For example SxS Registration Free COM. Reason Windows 2003 Server and later Operating Systems including...

In this paper, the methods of environmental mapping with multi-agent mobile robots are discussed. Using three small mobile robots, proprietary software has been developed in C# in order to complete the tasks. The main methods of localisation, object detection...

This paper outlines a few of the design and implementation methods of an autonomous mobile robot which is required to move between a series of GPS points avoiding obstacles in its path. The robot features a variety of different hardware and software....