在D5 MTX單元中253行.
implementation

uses ComObj;

type
  TGetObjectContextProc = function(var ObjectContext: IObjectContext): HRESULT; cdecl;
  TSafeRefProc = function(const rid: TGUID; Unk: IUnknown): Pointer; cdecl;
var
  GetObjectContextProc: TGetObjectContextProc = nil;
  SafeRefProc: TSafeRefProc = nil;
  MtsProcsLoaded: Boolean = False;

procedure LoadMtsProcs;
var
  Mtxdll: HModule;
begin
  if MtsProcsLoaded then Exit;
  MtsProcsLoaded := True;
  Mtxdll := GetModuleHandle('mtxex.dll');
  if mtxdll <> 0 then
  begin
    @GetObjectContextProc := GetProcAddress(Mtxdll, 'GetObjectContext');
    @SafeRefProc := GetProcAddress(Mtxdll, 'SafeRef');
  end;
end;

function GetObjectContext: IObjectContext;
begin
  LoadMtsProcs;
  if Assigned(GetObjectContextProc) then
    OleCheck(GetObjectContextProc(Result))
  else
    Result := nil;    //單步執(zhí)行時(shí)返回空.
end;

D6中的MTX單元 注意不同.

implementation

uses ComObj;

type
  TGetObjectContextProc = function(var ObjectContext: IObjectContext): HRESULT; cdecl;
  ///
  TCoGetObjectContextProc = function(const riid: TGUID; var ObjectContext: IObjectContext): HRESULT; stdcall;
  TSafeRefProc = function(const rid: TGUID; Unk: IUnknown): Pointer; cdecl;
var
  GetObjectContextProc: TGetObjectContextProc = nil;
  CoGetObjectContextProc: TCoGetObjectContextProc = nil;    ///
  SafeRefProc: TSafeRefProc = nil;
  MtsProcsLoaded: Boolean = False;

function IsComPlusPlatform: boolean;      //////  是否為COM+
var
  Ver: TOsVersionInfo;////
begin
  Ver.dwOSVersionInfoSize := sizeof(Ver);////
  GetVersionEx(Ver);
  if (Ver.dwPlatformID = VER_PLATFORM_WIN32_NT) and///
     (Ver.dwMajorVersion >= 5) then////
       Result := true          //
  else Result := false;
end;                              //////

procedure LoadMtsProcs;
var
  Mtxdll: HModule;
begin
  if MtsProcsLoaded then Exit;
  MtsProcsLoaded := True;
  if IsComPlusPlatform then        ////
  begin
    Mtxdll := GetModuleHandle('ole32.dll');   ///
    if mtxdll <> 0 then                         ///
       @CoGetObjectContextProc := GetProcAddress(Mtxdll, 'CoGetObjectContext');
  end                                             ///
  else
  begin
    Mtxdll := GetModuleHandle('mtxex.dll');
    if mtxdll <> 0 then
    begin
      @GetObjectContextProc := GetProcAddress(Mtxdll, 'GetObjectContext');
      @SafeRefProc := GetProcAddress(Mtxdll, 'SafeRef');
    end;
  end;
end;
function GetObjectContext: IObjectContext;
const
  IID_IObjectContext: TGUID = '{51372AE0-CAE7-11CF-BE81-00AA00A2FA25}';  ///
begin
  LoadMtsProcs;
  if Assigned(CoGetObjectContextProc) then    ///
    CoGetObjectContextProc(IID_IObjectContext, Result)     ///
  else if Assigned(GetObjectContextProc) then
    OleCheck(GetObjectContextProc(Result))
  else
    Result := nil;
end;

加斜細(xì)的是多的部分你只需要把這些部加D5的MTX就可以了.然后另存到你程序的當(dāng)前目錄
編譯程序就能獲得ObjectContext了.