Question

Here is how we manually assign the permissions to a registry key:

To assign permissions to a registry key

• Open Registry Editor. Click the key to which you want to assign permissions.

• On the Edit menu, click Permissions.

• Assign an access level to the selected key as follows:

• To grant the user permission to read the key contents, but not save
  any changes made to the file, under Permissions for name, for Read,
  select the Allow check box.

• To grant the user permission to open, edit, and take ownership of the
  selected key, under Permissions for name, for Full Control, select
  the Allow check box.

• To grant the user special permission in the selected key, click
  Advanced.

So my question is, would it be possible to do it programmatically? Say, if I want to grant Users full control permission on a particular subkey, how should I write the code in C#? Thanks very much.

Answer 1

RegistrySecurity class is also useful here. So we can write the following code to apply access rules on the registry key for a current user.

RegistrySecurity rs = new RegistrySecurity(); // it is right string for this code
string currentUserStr = Environment.UserDomainName + "\\" + Environment.UserName;
rs.AddAccessRule(new RegistryAccessRule(currentUserStr, RegistryRights.WriteKey | RegistryRights.ReadKey | RegistryRights.Delete | RegistryRights.FullControl, AccessControlType.Allow));