OpenSubKey() returns null for a registry key that I can see in regedit.exe-PHP Chinese Network Q&A

0 answers

Q&A

OpenSubKey() returns null for a registry key that I can see in regedit.exe

P粉333186285 2025-12-31 13:01:06 Views 41

C++

I'm trying to get all the display names of the sub keys within this key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

With this code:

     RegistryKey newKey;
     string val;

     string KeyPath64Bit = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";
     RegistryKey mainKey = Registry.LocalMachine.OpenSubKey(KeyPath64Bit);

     string[] RegKeys64Bits = Registry.LocalMachine.OpenSubKey(KeyPath64Bit).GetSubKeyNames();

     foreach (string s in RegKeys64Bits)
     {
        newKey = mainKey.OpenSubKey(s);
        val = newKey.GetValue("DisplayName", -1, RegistryValueOptions.None).ToString();
        if (val != "-1")
           file64.WriteLine(val);
     }

After running the code I can't find one of the keys I need:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{DA5E371C-6333-3D8A-93A4-6FD5B20BCC6E}

And it should have the display name: Microsoft Visual C++ 2010 x64 Redistributable - 10.0.30319, but instead the GetSubKeyNames() method gives me the sub key : {DA5E371C-6333-3D8A-93A4-6FD5B20BCC6E}.KB2151757 which doesn't have any display name.

Why can't I get the exact sub key I need ({DA5E371C-6333-3D8A-93A4-6FD5B20BCC6E}) and how can I get it?

Your Answer

submit

0 answers