获取WINDOWS 系统目录

uses
  Shlobj;

const
  CSIDL_COMMON_APPDATA                = $0023; // DELPHI7中Shlobj单元未定义，DELPHI2007包含了定义
                                                      // 不知传递路径的参数值,可以查询 http://baike.baidu.com/view/3143145.htm

var
  Str: string;
  MChar: array[0..250] of char;
begin
  SHGetSpecialFolderPath(0, MChar, CSIDL_COMMON_APPDATA, False);
  ShowMessage(MChar);
end;
 
获取当前用户路径
function GetCurrentUsrDeskPath: string;
begin
  SetLength(Result, MAX_PATH);
  ExpandEnvironmentStrings(PAnsiChar('%UserProfile%'), PAnsiChar(Result), MAX_PATH);
end;