The QuantumType property specifies either fixed or variable length quantums. Windows NT 4.0 Workstation/Windows 2000 defaults ...

The QuantumType property specifies either fixed or variable length quantums. Windows NT 4.0 Workstation/Windows 2000 defaults to variable length quantums where the foreground application has a longer quantum than the background applications. Windows NT Server defaults to fixed-length quantums. A quantum is a unit of execution time that the scheduler is allowed to give to an application before switching to another application. When a thread runs one quantum, the kernel preempts it and moves it to the end of a queue for applications with equal priorities. The actual length of a thread's quantum varies across different Windows platforms. For Windows NT/Windows 2000 only.
The property can take the following values: 
0 = Unkown - Quantum Type not known.
1 = Fixed - Quantum length is fixed.
2 = Variable - Quantum length is variable.
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