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Editorial Team
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Asked: 2026-05-16T16:37:16+00:00

Here’s my code: Microsoft.Win32.RegistryKey key = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(@SOFTWARE\ADM); The registry entry exists on the machine.

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Here’s my code:

Microsoft.Win32.RegistryKey key = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(@"SOFTWARE\ADM");

The registry entry exists on the machine. key is always null.

I don’t think that this is a security issue. I’m running as Administrator. (I’ve even explicitly ran the assembly under Administrator mode).

I’m using Visual Studio 2010 running on Windows 7 64bit.

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1 Answer

  1. Editorial Team

    The problem is that I’m running 64bit and my app is compiled as 32bit.

    The key being read by:

    Microsoft.Win32.RegistryKey key = 
    Microsoft.Win32.Registry.LocalMachine.OpenSubKey(@"SOFTWARE");

    Is not HKLM\SOFTWARE but instead HKLM\SOFTWARE\Wow6432Node\. Compiling the application as x64 solves the problem.

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