COMM-DRV/NT application crashes with a blue screen when minimized.

When an application is minimized, memory one allocates may be paged out depending on whether it is allocated on the stack or heap. One way to ensure that the data is not paged out is to allocate any buffer used by your application as follows.

#define	BUFSIZE	1024

char	*Buffer;

BOOL	Ret;

if ((Buffer=(char *)VirtualAlloc(NULL, BUFSIZE, MEM_COMMIT, PAGE_READWRITE)) == NULL)

	{

	//Do error handling

	}

if (!VirtualLock(Buffer, BUFSIZE))

	{

	VirtualFree(....)

	//Do error handling

	}