VirtualProtect
The VirtualProtect function changes the access protection on a region of committed pages in the virtual address space of the calling process.
To change the access protection of any process, use the VirtualProtectEx function.
BOOL VirtualProtect(
LPVOID lpAddress, // region of committed pages
SIZE_T dwSize, // size of the region
DWORD flNewProtect, // desired access protection
PDWORD lpflOldProtect // old protection
);
