Data type Range Default value
REG_SZ 0 | Number in megabytes 0


Determines the amount of virtual memory allocated to each Windows 2000 virtual DOS machine (NTVDM) running an MS-DOS-based application.

Value Meaning
0 The system calculates an optimal NTVDM size based on the amount of physical memory on the computer, and adjusts the size if the amount of memory changes.
Number (MB) Overrides the value calculated by the system and prevents the system from adjusting this value dynamically.

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