Parse error in 64-bit windows server 2003

Hi all,

I compiled a sample ISAPI DLL file in windows server 2003 64-bit machine. In

the sample file I wrote a wrapper class around CHttpServer (I am not using

DllMain function). In side the function "MyClass::HttpExtensionProc" , I

tried to call base class function "CHttpServer::HttpExtensionProc". But this

functions throws an parse error. The parse error code is "callNoStackSpace".

and the HTTP status code is "HTTP_STATUS_SERVER_ERROR". The same code is

working fine without parse error in 32 bit windows 2003 machine.



In the 64 bit machine if i tried to compile the code without calling

base class function, then it did not throw parse error.



I created this sample code In visual studio by using the following the steps.

1. open a new visual studio c++ IDE.

2. select file -> new

3. In the project tab select ISAPI Extension Wizard.

4. leave the default & create a workspace.

5. Then added function HttpExtensionProc in the derived class (for

overrinding)

6. Then I ported this code to 64 bit env using the link

"http://www.eggheadcafe.com/ng/microsoft.public.vstudio.general/post272156.asp"

and under the heading "4/26/2004 7:45:18 PM RE: VS6 and intel C++ 8.0 -

how to compile for WIN64?"



After doing the modification the compiler option is :-

/nologo /MD /W3 /GX /O2 /D "WIN64" /D "NDEBUG" /D "_WINDOWS" /D "_WINDLL"

/D "_AFXDLL" /D "_MBCS" /D "_USRDLL" /Fp"Release64/our_isapi_32.pch" /Yu"stdafx.h"

/Fo"Release64/" /Fd"Release64/" /FD /c



After doing the modification the linker option is :-

/nologo /subsystem:windows /dll /incremental:no /pdb:"Release64/our_isapi_32.pdb"

/machine:IX86 /nodefaultlib:"odbc32.lib" /nodefaultlib:"odbccp32.lib" /def:".\our_isapi_32.def"

/out:"Release64/our_isapi_32.dll" /implib:"Release64/our_isapi_32.lib" /machine:IA64





The sample code is :-



#include "stdafx.h"

#include "our_isapi_32.h"



CWinApp theApp;

int g_test=0;



BEGIN_PARSE_MAP(COur_isapi_32Extension, CHttpServer)



ON_PARSE_COMMAND(Default, COur_isapi_32Extension, ITS_EMPTY)

DEFAULT_PARSE_COMMAND(Default, COur_isapi_32Extension)

END_PARSE_MAP(COur_isapi_32Extension)



COur_isapi_32Extension theExtension;



COur_isapi_32Extension::COur_isapi_32Extension()

{

}



COur_isapi_32Extension::~COur_isapi_32Extension()

{

}



BOOL COur_isapi_32Extension::GetExtensionVersion(HSE_VE RSION_INFO* pVer)

{

CHttpServer::GetExtensionVersion(pVer);



TCHAR sz[HSE_MAX_EXT_DLL_NAME_LEN+1];

ISAPIVERIFY(::LoadString(AfxGetResourceHandle(),

IDS_SERVER, sz, HSE_MAX_EXT_DLL_NAME_LEN));

_tcscpy(pVer->lpszExtensionDesc, sz);

return TRUE;

}



BOOL COur_isapi_32Extension::TerminateExtension(DWORD dwFlags)

{

return TRUE;

}



void COur_isapi_32Extension:efault(CHttpServerContext* pCtxt){}



DWORD COur_isapi_32Extension::HttpExtensionProc( EXTENSION_CONTROL_BLOCK

*pECB )

{

CHAR szBuff[4096] = { 0 };

DWORD dwLen = 0;



CHttpServer::HttpExtensionProc(pECB);



if (g_test == 0)

wsprintf( szBuff, "Mytest line(parse error not called)" );

else

wsprintf( szBuff, "Mytest line (parse error called)" );



dwLen = lstrlen( szBuff );

pECB->WriteClient(pECB->ConnID, szBuff, &dwLen, dwLen );



return HSE_STATUS_SUCCESS;

}



BOOL COur_isapi_32Extension::OnParseError(CHttpServerCo ntext* pCtxt, int

nErrCode)

{

g_test = 1;

system("echo \"OnParseError called in sample file... \" >> c:\\MY_LOG.txt");

CHttpServer::OnParseError( pCtxt, nErrCode );



return(true);

}



// Do not edit the following lines, which are needed by ClassWizard.

#if 0

BEGIN_MESSAGE_MAP(COur_isapi_32Extension, CHttpServer)

//{{AFX_MSG_MAP(COur_isapi_32Extension)

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

#endif // 0

It is a bug in IIS 6.0