Configuration Manager
The configuration manager controls the Windows NT system registry, as well as the Windows Registry API functions.
Process Manager
The project manager executes all native system services including NtCreateProcess and similar functions. The Process Manager also implements process accounting.
Virtual Memory Manager
The Virtual Memory Manager creates and manages address maps for processes. The Virtual Memory Manager also does all physical memory allocation. To improve performance, the VMM implements file memory mapping, memory sharing, and copy-on-write page protection. File memory mapping involves the automatic load of a file that is identified by the VMM as being connected to a currently in use portion of a process’ memory map. Memory sharing is used primarily for communication between processes. Copy-on-write is implemented to facilitate sharing of one instance of data between many processes.
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