Application crash if left idle

[C++ Programming]

My application(MFC, windows based with activeX ctrls) crashes if it is been idle for say 2 mins, after invoking a particular component. If some othe roperatio is done, after that it works fine.

below is its large call stack
+1e701 02921430 02a1ff48 0292144c
ntdll!ExecuteHandler2+26 02921430 02a1ff48 0292144c
ntdll!ExecuteHandler+24 02a1ff48 0292144c 02921430
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292144c 02921430
+1e701 02921800 02a1ff48 0292181c
ntdll!ExecuteHandler2+26 02921800 02a1ff48 0292181c
ntdll!ExecuteHandler+24 02a1ff48 0292181c 02921800
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292181c 02921800
+1e701 02921bd0 02a1ff48 02921bec
ntdll!ExecuteHandler2+26 02921bd0 02a1ff48 02921bec
ntdll!ExecuteHandler+24 02a1ff48 02921bec 02921bd0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02921bec 02921bd0
+1e701 02921fa0 02a1ff48 02921fbc
ntdll!ExecuteHandler2+26 02921fa0 02a1ff48 02921fbc
ntdll!ExecuteHandler+24 02a1ff48 02921fbc 02921fa0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02921fbc 02921fa0
+1e701 02922370 02a1ff48 0292238c
ntdll!ExecuteHandler2+26 02922370 02a1ff48 0292238c
ntdll!ExecuteHandler+24 02a1ff48 0292238c 02922370
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292238c 02922370
+1e701 02922740 02a1ff48 0292275c
ntdll!ExecuteHandler2+26 02922740 02a1ff48 0292275c
ntdll!ExecuteHandler+24 02a1ff48 0292275c 02922740
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292275c 02922740
+1e701 02922b10 02a1ff48 02922b2c
ntdll!ExecuteHandler2+26 02922b10 02a1ff48 02922b2c
ntdll!ExecuteHandler+24 02a1ff48 02922b2c 02922b10
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02922b2c 02922b10
+1e701 02922ee0 02a1ff48 02922efc
ntdll!ExecuteHandler2+26 02922ee0 02a1ff48 02922efc
ntdll!ExecuteHandler+24 02a1ff48 02922efc 02922ee0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02922efc 02922ee0
+1e701 029232b0 02a1ff48 029232cc
ntdll!ExecuteHandler2+26 029232b0 02a1ff48 029232cc
ntdll!ExecuteHandler+24 02a1ff48 029232cc 029232b0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 029232cc 029232b0
+1e701 02923680 02a1ff48 0292369c
ntdll!ExecuteHandler2+26 02923680 02a1ff48 0292369c
ntdll!ExecuteHandler+24 02a1ff48 0292369c 02923680
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292369c 02923680
+1e701 02923a50 02a1ff48 02923a6c
ntdll!ExecuteHandler2+26 02923a50 02a1ff48 02923a6c
ntdll!ExecuteHandler+24 02a1ff48 02923a6c 02923a50
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02923a6c 02923a50
+1e701 02923e20 02a1ff48 02923e3c
ntdll!ExecuteHandler2+26 02923e20 02a1ff48 02923e3c
ntdll!ExecuteHandler+24 02a1ff48 02923e3c 02923e20
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02923e3c 02923e20
+1e701 029241f0 02a1ff48 0292420c
ntdll!ExecuteHandler2+26 029241f0 02a1ff48 0292420c
ntdll!ExecuteHandler+24 02a1ff48 0292420c 029241f0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292420c 029241f0
+1e701 029245c0 02a1ff48 029245dc
ntdll!ExecuteHandler2+26 029245c0 02a1ff48 029245dc
ntdll!ExecuteHandler+24 02a1ff48 029245dc 029245c0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 029245dc 029245c0
+1e701 02924990 02a1ff48 029249ac
ntdll!ExecuteHandler2+26 02924990 02a1ff48 029249ac
ntdll!ExecuteHandler+24 02a1ff48 029249ac 02924990
ntdll!KiUserExceptionDispatcher+e 02a1ff48 029249ac 02924990
+1e701 02924d60 02a1ff48 02924d7c
ntdll!ExecuteHandler2+26 02924d60 02a1ff48 02924d7c
ntdll!ExecuteHandler+24 02a1ff48 02924d7c 02924d60
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02924d7c 02924d60
+1e701 02925130 02a1ff48 0292514c
ntdll!ExecuteHandler2+26 02925130 02a1ff48 0292514c
ntdll!ExecuteHandler+24 02a1ff48 0292514c 02925130
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292514c 02925130
+1e701 02925500 02a1ff48 0292551c
ntdll!ExecuteHandler2+26 02925500 02a1ff48 0292551c
ntdll!ExecuteHandler+24 02a1ff48 0292551c 02925500
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292551c 02925500
+1e701 029258d0 02a1ff48 029258ec
ntdll!ExecuteHandler2+26 029258d0 02a1ff48 029258ec
ntdll!ExecuteHandler+24 02a1ff48 029258ec 029258d0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 029258ec 029258d0
+1e701 02925ca0 02a1ff48 02925cbc
ntdll!ExecuteHandler2+26 02925ca0 02a1ff48 02925cbc
ntdll!ExecuteHandler+24 02a1ff48 02925cbc 02925ca0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02925cbc 02925ca0
+1e701 02926070 02a1ff48 0292608c
ntdll!ExecuteHandler2+26 02926070 02a1ff48 0292608c
ntdll!ExecuteHandler+24 02a1ff48 0292608c 02926070
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292608c 02926070
+1e701 02926440 02a1ff48 0292645c
ntdll!ExecuteHandler2+26 02926440 02a1ff48 0292645c
ntdll!ExecuteHandler+24 02a1ff48 0292645c 02926440
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292645c 02926440
+1e701 02926810 02a1ff48 0292682c
ntdll!ExecuteHandler2+26 02926810 02a1ff48 0292682c
ntdll!ExecuteHandler+24 02a1ff48 0292682c 02926810
ntdll!KiUserExceptionDispatcher+e 02a1ff48 0292682c 02926810
+1e701 02926be0 02a1ff48 02926bfc
ntdll!ExecuteHandler2+26 02926be0 02a1ff48 02926bfc
ntdll!ExecuteHandler+24 02a1ff48 02926bfc 02926be0
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02926bfc 02926be0
+1e701 02926fb0 02a1ff48 02926fcc
ntdll!ExecuteHandler2+26 02926fb0 02a1ff48 02926fcc
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02a1eccc 02a1ecb0
+1e701 02a1f080 02a1ff48 02a1f09c
ntdll!ExecuteHandler2+26 02a1f080 02a1ff48 02a1f09c
ntdll!ExecuteHandler+24 02a1ff48 02a1f09c 02a1f080
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02a1f09c 02a1f080
+1e701 02a1f450 02a1ff48 02a1f46c
ntdll!ExecuteHandler2+26 02a1f450 02a1ff48 02a1f46c
ntdll!ExecuteHandler+24 02a1ff48 02a1f46c 02a1f450
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02a1f46c 02a1f450
+1e701 02a1f820 02a1ff48 02a1f83c
ntdll!ExecuteHandler2+26 02a1f820 02a1ff48 02a1f83c
ntdll!ExecuteHandler+24 02a1ff48 02a1f83c 02a1f820
ntdll!KiUserExceptionDispatcher+e 02a1ff48 02a1f83c 02a1f820
+1e701 02a1fbf0 02a1ff48 02a1fc0c
ntdll!ExecuteHandler2+26 02a1fbf0 02a1ff48 02a1fc0c
ntdll!ExecuteHandler+24 00000000 02a1fc0c 02a1fbf0
ntdll!KiUserExceptionDispatcher+e 00000000 02a1fc0c 02a1fbf0
+271d 02a1ff30 02a1ff54 028d1785
0x02a1ff5c 02a1ff5c 02114c38 00000102
ntdll!RtlpAllocateFromHeapLookaside+42 02a1ff6c 02114be8 02a1ff74
+39f3 00000005 02114c38 00000000
ntdll!RtlpAllocateFromHeapLookaside+42 02114ba4 02a1ffb4 7c349565
+1c999 00000005 02114c38 00000000
ntdll!RtlpAllocateFromHeapLookaside+42 02114c38 7c910222 00000005
kernel32!BaseThreadStart+37 7c3494f6 02114c38 00000000



Any guesses?