Access Violation

Hi All,
I'm facing the following exception (from windbg) when running a c++ app.
I'm aware that I might have memory corruption but I don't have any clue of how to proceed from here.
I'm having problem figuring out the mov instruction.

(99c.df0): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00229480 ebx=774c0e38 ecx=00000000 edx=0000004a esi=2dd91798 edi=00000000
eip=771287b2 esp=2dd3cb08 ebp=2dd3cb08 iopl=0 nv up ei pl nz na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\RPCRT4.dll -
RPCRT4!UuidToStringW+0x21:
771287b2 8901 mov dword ptr [ecx],eax ds:0023:00000000=????????

Thanks a lot

 

Please disable your debugger and report the error that the C++ app would report.