read/write registry in windows server 2008 using web service

Question

Hi, 

I create web service for Reading and writing the registry. It works fine in win-xp. But its not working when I published it in win-2008 server. It shows me http 500 error.

My Code is:

set Reg:

string key = @"SOFTWARE\Wow6432Node\MyCompany\MyProject\Settings";

            string valuename = "Allow";

            setRegistryValue(key, valuename, Value);

Get Reg:

string key = @"SOFTWARE\Wow6432Node\MyCompany\MyProject\Settings";

            string valuename = "Allow";

            return Convert.ToInt32(getRegistryValue(key, valuename));

Can any body please help me whats going on with win-2008 server

Thanks,

Murali krishna.