How to use gacutil in Vista

Well as you probably know by now Vista’s clever UAC ensures that gacutil is not run with Administrator privileges and usually for installing and uninstalling assemblies into the gac you’ll need admin rights. A simple solution is to right-click on a Command Prompt icon and select Run as Administrator. You can now use gacutil.exe to…

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How to create a FOR loop in BizTalk mapper

In order to achieve this, we will be using the Iteration functoid.  The Iteration functoid outputs the index of the current record in a looping structure. The XSLT generated by the BizTalk mapper, processes elements with possible multiple instances using a loop. In other words, an order book with unbounded number of orders would usually…

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BizTalk’s Cumulative Functoids and their Scope

Biztalk’s powerful mapper tool, allows the reduction of multiple values into a single value. For instance it allows the user to sum up the values of all orders. However what if we are only interested in summing up the value of all the orders in the scope of their parent order book? Well in that…

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Windows Workflow Foundation (Basics): How to handle external events and to trigger state transitions using a HandleExternalEvent activity

  MSDN’s description for a HandleExternalEvent reads as “Defines a workflow communication activity that is used to handle an event that is raised by a local service”. In this blog I will try to expand on that definition. Imagine a simple state machine representing a moving (state = Moving) or non-moving (state = Stopped) vehicle. For simplicity, let’s assume that the…

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