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Scripting Competition Registry Extension So far, all three scripting languages have proven their general suitability in the area of infrastructure. Now I want to create a key in the registry for the local system and equip it with a pair of values.

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The second task for the three scripting methods is to start the C: If an error occurs, I want to inform the user that the application could not be launched. In comparison, the VBScript approach to extending the registry is as follows: Using the RegWrite method, the key and value are stored using just one statement.

How does PowerShell set the default? In principle, PowerShell uses the same commands for editing the registry as for the filesystem: The corresponding noun here is ItemProperty, because the value pair is a property. Starting a Program with Feedback The final test comparing the three candidates involves launching an application with error handling.

  1. The documentation also suffers from this heterogeneous structure, with no uniform help system.
  2. The veteran approaches this problem as follows. In principle, PowerShell uses the same commands for editing the registry as for the filesystem.
  3. The construct Try … Catch allows exceptions to be caught and handled at the statement level, and you even have the possibility of responding to specific errors, such as missing permissions and the like.
  4. Using the RegWrite method, the key and value are stored using just one statement. Finally, the Windows PowerShell command is.

The veteran approaches this problem as follows: A query if errorlevel 0 goto success would fail because the error code 1 would be included. The type of error e. Echo "An error occurred! If a statement triggers an exception, it generates an error code, which can be negative; therefore the test is "not equal to zero. Finally, the Windows PowerShell command is: The construct Try … Catch allows exceptions to be caught and handled at the statement level, and you even have the possibility of responding to specific errors, such as missing permissions and the like.

Conclusions The applications used by batch files, such as net. One of the problems is its inability to adapt to the scripting needs that have arisen since it was created.

Scripting Competition

Ultimately, when using batch files, you need to predict support in the future for each component, and sometimes even for current operating systems. A consistent syntax model is not possible because of this fragmentation. Each command implements the way it transfers parameters differently. The documentation also suffers from this heterogeneous structure, with no uniform help system. Objects are not implemented, either. However, processing speed is a positive.

As a result, the development of logon scripts is much more stringent.

Microsoft Installer: MSI

Unfortunately, the COM object model is one of the slowest in the universe. Complex tasks can thus try your patience. VBScript additionally cannot beat batch in terms of error handling. However, the documentation of the core components is well done. The current flagship among administrative tools overcomes all the previously described shortcomings of the veterans batch and VBScript see the "Advantages of PowerShell" box.

Windows PowerShell supports all object models, its scripts have a tremendous range of functions and are assured of a good future, and the internal help is perfectly integrated Table 1.

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Syntax, parameters, and examples can be accessed for each command using get-help, and a very good editor with debugging facilities, the Integrated Scripting Environment ISEis also available. Advantages of PowerShell PowerShell offers the following benefits as a technological basis for logon scripts: Consistent syntax, consistent command structure Future-proof through.

NET integration Support through help and documentation Sophisticated error handling Support for all common formats Table 1.