Address	Page Status	Size	Access rights	Comments
0000 0000	Reserved	65,536
0001 0000	Reserved	4,096		Start of EXE
0001 1000	Image	2,048	Execute, Read-only	Code
0001 1800	Reserved	1,024
0001 1C00	Image	1,024	Execute, Read-only
0001 2000	Reserved	2,048
0001 2800	Image	8,192	Execute, Read-only
0001 4800	Reserved	2,048
0001 5000	Image	1,024	Execute, Read-only
0001 5400	Reserved	11,264
0001 8000	Image	3,072	Read-only	Read-only static data
0001 8C00	Reserved	1,024
0001 9000	Image	1,024	Read-write	Read-write static data
0001 9400	Reserved	1,024
0001 9800	Image	7,168	Read-write
0001 B400	Reserved	7,168
0001 D000	Image	2,048	Read-only	Resource data segment
0001 D800	Reserved	2,048
0001 E000	Free	8,192
0002 0000	Reserved	54,272		Stack
0002 D400	Private	7,168	Read-write
0002 F000	Free	4,096		Guard page(s)
0003 0000	Private	1,024	Read-write	Local Heap
0003 0400	Reserved	392,192
0009 0000	Free	30,408,704		Free
01D9 0000	Reserved	1,024		COMMCTRL image
01D9 0400	Image	237,568	Execute, Read-only
01DC A400	Image	2,048	Read-write
01DC AC00	Reserved	7,168
01DC C800	Image	7,168	Read-only
01DC E400	Reserved	13,312
01DD 1800	Free	2,091,008		Free
01FD 0000	Reserved	1,024		COREDLL image
01FD 0400	Image	119,808	Execute, Read-only
01FE D800	Image	1,024	Read-write
01FE DC00	Reserved	8,192
01FE FC00	Image	1,024	Read-only
01FF 0000	Reserved	5,120
01FF 1400	Free	60,416

Figure 4   Partial Visual C++ Map File

 memtest
 
 Timestamp is 34ce4088 (Tue Jan 27 12:16:08 1998)
 
 Preferred load address is 00010000
 
 Start         Length     Name                   Class
 0001:00000000 00006100H .text                   CODE
 0002:00000000 00000310H .rdata                  DATA
 0002:00000310 00000014H .xdata                  DATA
 0002:00000324 00000028H .idata$2                DATA
 0002:0000034c 00000014H .idata$3                DATA
 0002:00000360 000000f4H .idata$4                DATA
 0002:00000454 000003eeH .idata$6                DATA
 0002:00000842 00000000H .edata                  DATA
 0003:00000000 000000f4H .idata$5                DATA
 0003:000000f4 00000004H .CRT$XCA                DATA
 0003:000000f8 00000004H .CRT$XCZ                DATA
 0003:000000fc 00000004H .CRT$XIA                DATA
 0003:00000100 00000004H .CRT$XIZ                DATA
 0003:00000104 00000004H .CRT$XPA                DATA
 0003:00000108 00000004H .CRT$XPZ                DATA
 0003:0000010c 00000004H .CRT$XTA                DATA
 0003:00000110 00000004H .CRT$XTZ                DATA
 0003:00000114 000011e8H .data                   DATA
 0003:000012fc 0000108cH .bss                    DATA
 0004:00000000 000003e8H .pdata                  DATA
 0005:00000000 000000f0H .rsrc$01                DATA
 0005:000000f0 00000334H .rsrc$02                DATA
 
  Address         Publics by Value              Rva+Base     Lib:Object
 
 0001:00000000       _WinMain                   00011000 f   memtest.obj
 0001:0000007c       _InitApp                   0001107c f   memtest.obj
 0001:000000d4       _InitInstance              000110d4 f   memtest.obj
 0001:00000164       _TermInstance              00011164 f   memtest.obj
 0001:00000248       _MainWndProc               00011248 f   memtest.obj
 0001:000002b0       _GetFixedEquiv             000112b0 f   memtest.obj
 0001:00000350       _DoCreateMain              00011350 f   memtest.obj.
 
 .
 .
 .

Figure 5   Opening a Memory-Mapped File

 HANDLE hFile, hFileMap;
 PBYTE pFileMem;
 TCHAR szFileName[MAX_PATH];
 
 // Get the file name
 
 hFile = CreateFileForMapping(szFileName, GENERIC_READ, FILE_SHARE_READ, 
                              NULL, OPEN_EXISTING,    
		FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, 0); 
     
 if (hFile != INVALID_HANDLE_VALUE) {
 
 hFileMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, 0);
     if (hFileMap) {
         pFileMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 0);
         if (pFileMem) {
             //
             // Use the data in the file
             //
 
             // Start cleanup by unmapping view
             UnmapViewOfFile (pFileMem);
         }
         CloseHandle (hFileMap);
     } 
     CloseHandle (hFile);
 } 

Figure 8   Handheld PC Low Memory Thresholds

Event	Free memory 1,024 page size	Free memory 4,096 page size	Comments
Enter limited memory state	128KB	160KB	Send WM_HIBERNATE messages and reclaim free stack space as needed
Enter low memory state	64KB	96KB	Limit virtual allocs to 16KB. Low memory dialog displayed.
Enter critical memory state	16KB	48KB	Limit virtual allocs to 8KB.