New App and Utility

Access 64-bit HKLM\Software registry by 32-bit C#.NET application While running 32-bit windows application on a 64-bit windows OS their is a registry redirection. Here if 32-bit application try to read a key under HKLM\Software, then due to Registry redirection effective path becomes HKLM\Software\Wow6432Node. For example, we are running 64-bit and 32-bit application to read registry keys as HKLM\Software\xyz and HKLM\Software\Wow6432Node\xyz So by default with an input of HKLM\Software, 64-bit application will read HKLM\Software\xyz while because of registry redirection 32-bit application will read HKLM\Software\Wow6432Node\xyz. In C#, to read 64-bit HKLM\Software registry keys we can use RegistryKey.OpenBaseKey method . This method takes two arguments- RegistryHive and RegistryView. Here sperate registry views are present for 32-bit and 64-bit. Here is the sample C# code to read AppPaths for 32-bit and 64-bit applications installed on the system - try     ...

Icon of Installed Windows Applications First we need to figure out the location of icon for the installed windows application. This information is stored in registry at following locations - 1. Key name - HEKY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall    Value    - DisplayIcon 2. Key name - HKEY_CLASSES_ROOT\Installer\Products\{productID}    Value - ProductIcon first try to get location of icon from HEKY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall. Here if the value of DisplayIcon is null then try to fetch location of icon from HKEY_CLASSES_ROOT\Installer\Products\{productID} Here is the sample code to read the icon - CodeProject using system.Drawing // read HKEY_LOCAL_MACHINE Icon ProductIcon; private void ReadIcon() { try { string uninstallKey = @" SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" ; using (RegistryKey rk = Registry.LocalMachine.OpenSubKey(...