System.StackOverflowException was unhandled

Hi Hope you could answer the following question to me or lead me to the right direction. I have coded a project which uses Marshal::AllocHGlobal as you know it allocates memory from the unmanged memory for char * and int. I also used Marshal.FreeHGlobal to free the memory. The program works fine the first time. And sometimes 2 3 4 5 times but eventually I get the above message. char *chrVersionName = (char*)(Marshal::AllocHGlobal(17).ToPointer()); this is the code where sometimes the program dies.. and this how I free the memory. Marshal::FreeHGlobal(IntPtr(chrVersionName)); Any suggestions what Im doing run? I am using Visual Studio .NET Frawork 2.0 Microsoft Visual Studio 2005Version 8.0.50727.762 (SP.050727-7600)Microsoft .NET FrameworkVersion 2.0.50727 Microsoft Visual C++ 2005 77626-009-0000007-41932 I hope you could help me..