Help required to resolve LNK4086 error!

hi all,

I am trying to export some functions to a VB Application through a dll.

My dll is compiling properly.When i am building my dll ,

linker says:

 Linking...
Creating library Debug/Projdll.lib and object Debug/Projdll.exp
Debug/Projdll.exe : warning LNK4086: entrypoint "_mainCRTStartup" is
not __stdcall with 12 bytes of arguments; image may not run
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/Projdll.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Projdll.exe - 2 error(s), 1 warning(s)

The following in my code:

//Projdll.h
#include <windows.h>
#include <winldap.h>
#include <stdio.h>

LDAP* pLdapConnection = NULL;
ULONG version = LDAP_VERSION3;

ULONG _stdcall recConfig(char* Sname,char* domain,char* uname,char*
pword);

//Projdll.cpp
#include "ProjSrc.h"

ULONG _stdcall recConfig(char* domain,char* ip,char* uname,char* pword)
{
    PCHAR pUserName = uname;
    PCHAR pPassword = pword;
    PCHAR hostName = ip;
    PCHAR pDomainName = domain;

    pLdapConnection = ldap_init(hostName, LDAP_PORT);
    if (pLdapConnection == NULL)
    {
        printf("ldap_init failed with 0x%x.\n",LdapGetLastError());
        ldap_unbind(pLdapConnection);
        return -1;
    }
    else
    {
        printf("\n Initialisation successful \n");
        return 0;
    }

}

//Projdll.def

LIBRARY Projdll

DESCRIPTION 'export LDAPfunctions taken from Winldap.h

EXPORTS

;all variables and functions that have to be exported

recConfig

Please help me .
Thanks in advance,
Veena.