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POSearching x32 registry keys from a x64 program
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  1. POSearching x32 registry keys from a x64 program
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    copied!<p>I'm writing a C# application that is for x64 and my problem is that <strong>i'm searching the registry for some keys that contain certain keywords</strong> and and i am only able to search the registry of x64 applications because of registry redirection. <br/> I manged to find some code on the net but i don't really know what to do with it because from what i understand it only works if i know the exact key name while i'm searching for patterns or keywords. [DllImport("advapi32.dll", EntryPoint = "RegOpenKeyEx")] public static extern int RegOpenKeyEx_DllImport( UIntPtr hKey, string subKey, uint options, int sam, out IntPtr phkResult);</p> <pre><code> [DllImport("advapi32.dll", EntryPoint = "RegQueryValueEx")] static extern int RegQueryValueEx_DllImport( IntPtr hKey, string lpValueName, int lpReserved, out uint lpType, System.Text.StringBuilder lpData, ref uint lpcbData); public string GetKeyValue(string strSubKey, string strKey) { UIntPtr HKEY_LOCAL_MACHINE = (UIntPtr)0x80000002; const int KEY_WOW64_32KEY = 0x0200; const int KEY_QUERY_VALUE = 0x1; IntPtr hKeyVal; uint lpType; uint lpcbData = 0; System.Text.StringBuilder pvData = new System.Text.StringBuilder(1024); int valueRet; string returnPath = String.Empty; unchecked { try { //Open the required key path valueRet = RegOpenKeyEx_DllImport(HKEY_LOCAL_MACHINE, strSubKey, 0, KEY_QUERY_VALUE | KEY_WOW64_32KEY, out hKeyVal); //Retreive the key value valueRet = RegQueryValueEx_DllImport(hKeyVal, strKey, 0, out lpType, pvData, ref lpcbData); valueRet = RegQueryValueEx_DllImport(hKeyVal, strKey, 0, out lpType, pvData, ref lpcbData); returnPath = pvData.ToString(); } catch (Exception e) { throw (e); } } return returnPath; } </code></pre>
 

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