VB.NET 1.1 Tutorial - The STAThread Keyword

STAThread stands for Single Threaded Appartment Thread. This means in the process (application), there is only one thread which will accomplish all of the tasks for the process.

<STAThread()>
Shared Sub Main()
  ' ...
End Sub 

It is mandatory to give <STAThread()> for the main method in ver 1.0 of the .Net Framework. This is no longer mandatory for .Net Framework 1.1.

References

For more information on the STAThreadAttribute Class, visit MSDN at microsoft here.

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