CreateProcess

BOA TARDE,
estou tentando executar a seguinte procedure mas ele da erro no comando Fillchar([DCC Error] Unit2.pas(1288): E2003 Undeclared identifier: ´FillChar´) e pchar([DCC Error] Unit2.pas(1291): E2089 Invalid typecast).
procedure ExecNewProcess(ProgramName : String; Wait: Boolean);
var
StartInfo : TStartupInfo;
ProcInfo : TProcessInformation;
CreateOK : Boolean;
begin
{ fill with known state }
FillChar(StartInfo,SizeOf(TStartupInfo),#0);
FillChar(ProcInfo,SizeOf(TProcessInformation),0);
StartInfo.cb := SizeOf(TStartupInfo);
CreateOK := CreateProcess(nil, PChar(ProgramName), nil, nil,False,
CREATE_NEW_PROCESS_GROUP+NORMAL_PRIORITY_CLASS,
nil, nil, StartInfo, ProcInfo);
{ check to see if successful }
if CreateOK then
begin
//may or may not be needed. Usually wait for child processes
if Wait then
WaitForSingleObject(ProcInfo.hProcess, INFINITE);
end
else
begin
ShowMessage(´Unable to run ´+ProgramName);
end;
CloseHandle(ProcInfo.hProcess);
CloseHandle(ProcInfo.hThread);
end;
Estou usando o DElphi 2007 .NET