怎么判断注册表中是否存在某一项

如何判断注册表中是否存在某一项
我想判断注册表
HKEY_CURRENT_USER\Software\VB   and   VBA   Program   Settings
下是否有“绩效考核管理系统”这个程序的注册信息
也就是判断是否存在   HKEY_CURRENT_USER\Software\VB   and   VBA   Program   Settings\绩效考核管理系统

如何做


[解决办法]
LONG RegOpenKeyEx(
HKEY hKey,
LPCTSTR lpSubKey,
DWORD ulOptions,
REGSAM samDesired,
PHKEY phkResult
);

Public Declare Function RegOpenKeyEx Lib "advapi32.dll " Alias "RegOpenKeyExA " (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long