/// <summary>
/// Enumerates Shell extensions.
/// </summary>
/// <param name="registrationType">Type of the registration.</param>
/// <param name="shellExtensionTypes">The shell extension types.</param>
/// <returns></returns>
public static IEnumerable<ShellExtensionRegistrationInfo> EnumerateExtensions(RegistrationType registrationType, ShellExtensionType shellExtensionTypes)
{
var shellExtensionsGuidMap = new Dictionary<Guid, ShellExtensionRegistrationInfo>();
// Go through all classes.
using (var classes = OpenClassesRoot(registrationType))
{
// Read each subkey.
foreach (var className in classes.GetSubKeyNames().Where(cn => !cn.StartsWith("{")))
{
// Go through every shell extension type.
foreach (ShellExtensionType shellExtensionType in Enum.GetValues(typeof (ShellExtensionType)))
{
// Get the handler subkey.
var handlerSubkey = shellExtensionType.GetAttribute<HandlerSubkeyAttribute>();
if(handlerSubkey == null)
continue;
// Check for the subkey.
if (handlerSubkey.AllowMultipleEntries)
{
// Do we have the single subkey?
var handlerKeyPath = string.Format("{0}\\shellex\\{1}", className, handlerSubkey.HandlerSubkey);
using (var handlerSubKey = classes.OpenSubKey(handlerKeyPath, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.ReadKey | RegistryRights.QueryValues))
{
if (handlerSubKey != null)
{
// Read entries.
foreach (var entry in handlerSubKey.GetSubKeyNames())
{
using (var entryKey = handlerSubKey.OpenSubKey(entry, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.QueryValues | RegistryRights.ReadKey))
{
var guidVal = entryKey.GetValue(null, string.Empty).ToString();
Guid guid;
if (Guid.TryParse(guidVal, out guid) == false)
continue;
System.Diagnostics.Trace.WriteLine(string.Format("{0} has {3} {1} guid {2}", className,
shellExtensionType.ToString(), guid, entry));
// If we do not have a shell extension info for this extension, create one.
if (!shellExtensionsGuidMap.ContainsKey(guid))
{
shellExtensionsGuidMap[guid] = new ShellExtensionRegistrationInfo
{
DisplayName = entry,
ShellExtensionType = shellExtensionType,
ServerCLSID = guid,
};
}
// Add the class association.
shellExtensionsGuidMap[guid].classRegistrations.Add(new ClassRegistration(className));
}
}
}
}
}
else
{
// Do we have the single subkey?
var handlerKeyPath = string.Format("{0}\\shellex\\{1}", className, handlerSubkey.HandlerSubkey);
using (var handlerSubKey = classes.OpenSubKey(handlerKeyPath, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.ReadKey | RegistryRights.QueryValues))
{
if (handlerSubKey != null)
{
var guidVal = handlerSubKey.GetValue(null, string.Empty).ToString();
Guid guid;
if (Guid.TryParse(guidVal, out guid) == false)
continue;
System.Diagnostics.Trace.WriteLine(string.Format("{0} has {1} guid {2}", className,
shellExtensionType.ToString(), guid));
// If we do not have a shell extension info for this extension, create one.
if (!shellExtensionsGuidMap.ContainsKey(guid))
{
shellExtensionsGuidMap[guid] = new ShellExtensionRegistrationInfo
{
ShellExtensionType = shellExtensionType,
ServerCLSID = guid,
};
}
// Add the class association.
shellExtensionsGuidMap[guid].classRegistrations.Add(new ClassRegistration(className));
}
}
}
}
}
}
return shellExtensionsGuidMap.Values;
}
/// <summary>
/// Enumerates Shell extensions.
/// </summary>
/// <param name="registrationType">Type of the registration.</param>
/// <param name="shellExtensionTypes">The shell extension types.</param>
/// <returns></returns>
public static IEnumerable <ShellExtensionRegistrationInfo> EnumerateExtensions(RegistrationType registrationType, ShellExtensionType shellExtensionTypes)
{
var shellExtensionsGuidMap = new Dictionary <Guid, ShellExtensionRegistrationInfo>();
// Go through all classes.
using (var classes = OpenClassesRoot(registrationType))
{
// Read each subkey.
foreach (var className in classes.GetSubKeyNames().Where(cn => !cn.StartsWith("{")))
{
// Go through every shell extension type.
foreach (ShellExtensionType shellExtensionType in Enum.GetValues(typeof(ShellExtensionType)))
{
// Get the handler subkey.
var handlerSubkey = shellExtensionType.GetAttribute <HandlerSubkeyAttribute>();
if (handlerSubkey == null)
{
continue;
}
// Check for the subkey.
if (handlerSubkey.AllowMultipleEntries)
{
// Do we have the single subkey?
var handlerKeyPath = string.Format("{0}\\shellex\\{1}", className, handlerSubkey.HandlerSubkey);
using (var handlerSubKey = classes.OpenSubKey(handlerKeyPath, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.ReadKey | RegistryRights.QueryValues))
{
if (handlerSubKey != null)
{
// Read entries.
foreach (var entry in handlerSubKey.GetSubKeyNames())
{
using (var entryKey = handlerSubKey.OpenSubKey(entry, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.QueryValues | RegistryRights.ReadKey))
{
var guidVal = entryKey.GetValue(null, string.Empty).ToString();
Guid guid;
if (Guid.TryParse(guidVal, out guid) == false)
{
continue;
}
System.Diagnostics.Trace.WriteLine(string.Format("{0} has {3} {1} guid {2}", className,
shellExtensionType.ToString(), guid, entry));
// If we do not have a shell extension info for this extension, create one.
if (!shellExtensionsGuidMap.ContainsKey(guid))
{
shellExtensionsGuidMap[guid] = new ShellExtensionRegistrationInfo
{
DisplayName = entry,
ShellExtensionType = shellExtensionType,
ServerCLSID = guid,
};
}
// Add the class association.
shellExtensionsGuidMap[guid].classRegistrations.Add(new ClassRegistration(className));
}
}
}
}
}
else
{
// Do we have the single subkey?
var handlerKeyPath = string.Format("{0}\\shellex\\{1}", className, handlerSubkey.HandlerSubkey);
using (var handlerSubKey = classes.OpenSubKey(handlerKeyPath, RegistryKeyPermissionCheck.ReadSubTree, RegistryRights.ReadKey | RegistryRights.QueryValues))
{
if (handlerSubKey != null)
{
var guidVal = handlerSubKey.GetValue(null, string.Empty).ToString();
Guid guid;
if (Guid.TryParse(guidVal, out guid) == false)
{
continue;
}
System.Diagnostics.Trace.WriteLine(string.Format("{0} has {1} guid {2}", className,
shellExtensionType.ToString(), guid));
// If we do not have a shell extension info for this extension, create one.
if (!shellExtensionsGuidMap.ContainsKey(guid))
{
shellExtensionsGuidMap[guid] = new ShellExtensionRegistrationInfo
{
ShellExtensionType = shellExtensionType,
ServerCLSID = guid,
};
}
// Add the class association.
shellExtensionsGuidMap[guid].classRegistrations.Add(new ClassRegistration(className));
}
}
}
}
}
}
return(shellExtensionsGuidMap.Values);
}
/// <summary>
/// Uninstalls the server.
/// </summary>
/// <param name="registrationInfo">The server's registration information.</param>
/// <param name="registrationType">Type of the registration.</param>
/// <returns>True if the server WAS installed and has been uninstalled, false if the server was not found.</returns>
public static bool UninstallServer(
ShellExtensionRegistrationInfo registrationInfo,
RegistrationType registrationType)
{
return(UninstallServer(registrationInfo.ServerCLSID, registrationType));
}
