access permission on registry keys

[chanda gul]

Hi all,
i m trying to read registry root keys and their subkeys but there are some keys on which access is not allowed. For getting access to such keys, i used the following code where keypath is the path to that particular key to which i want to gain access, such as HKLM\ SAM. but it still not allows me to read that key and throws an exception "Registrykey access not allowed". so plz tell me a way to do this. thanks

RegistryPermission f = new RegistryPermission(
RegistryPermissionAccess.Read,
keypath);

[dickersonka]

you either can check permissions in regedit and grant the user, or if you impersonate the local system account that should work as well

[chanda gul]

is there any way to do this using c# code

[dickersonka]

yes, do a google search on c# impersonation

or use regedit to view permissions