C# 32位程序访问64位注册表

接上文：http://www.cnblogs.com/TaiYangXiManYouZhe/p/5086974.html

上代码：

RegistryKey localKey;
if (Environment.Is64BitOperatingSystem)
   localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
else
   localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);

string value = localKey.OpenSubKey(@"SOFTWARE\Microsoft\Office\15.0\Common\InstallRoot").GetValue("Path").ToString();

很简单，首先，Environment.Is64BitOperatingSystem 判断是否是64位的操作系统。

然后通过注册表打开目录时，传入相应的RegistryView枚举即可。注意：打开注册表时，调用的是OpenBaseKey方法！