I tried to make the key size (In Query operation) dynamic with "for" loop as the code below.. this was without any benefit: for (int i=1;i<90000000; i++){ getKey.set_size(i); getData.set_data(DDData); getData.set_ulen(28); getData.set_flags(DB_DBT_USERMEM); if(SigDb.get(NULL,&getKey,&getData,0)!=DB_NOTFOUND) Console::WriteLine(" {0},,{1}",Marshal::PtrToStringUni((IntPtr)DDData),i); } Marshal::FreeHGlobal(IntPtr(a)); Console::WriteLine("Finish");

Thank u N a v a n e e t h... great information ... btw the native array will be considered as unverifiable unlike the managed one. ;)

If you want to mix the asm into C++/CLI code you'd either need to use #pragma unmanaged or put the inline asm in a function within a separate file compiled without /clr. A .cpp file built with /clr which includes inline assembly will get an error like this: 1> ..\myfile.cpp(205): error C2711: 'CMyApp::Test' : this functon cannot be compiled as managed, consider using #pragma unmanaged 1> Inline native assembly not supported in managed code John

:thumbsup: Great man... It is more clear now. Thank you.