Fastest way to retrieve registry entries.

[mar_zim]

Guys good day. Anyone know other way of retrieving registry entries? rather than using the registry class under win32 namespace?

I have this code in retrieving registry entries under localmachine software key but dang! it takes a lot of time before it finish. any other way to make it fast?
I heard about using API calls but I haven't tried it yet coz I don't see any examples about it.

private void LookupSubKeys(string key){        	
        	try{        		
        	
        		RegistryKey regKey = Registry.LocalMachine.OpenSubKey(key,false);        	        	
        		if(regKey.SubKeyCount > 0){        		
        			foreach(string sKey in regKey.GetSubKeyNames()){               				        this.subKey = sKey;				
        				this.LookupSubKeys(key + "\\" + subKey);        				
        			}
        		}else this.ManageGetRegEntry(regKey);        	        		
        		        		
        	}catch(Exception ex){MessageBox.Show(ex.ToString());}
        }

StringBuilder sb = new StringBuilder();        
        private void ManageGetRegEntry(RegistryKey regKey){        	
        	string[] s = regKey.GetValueNames();
        	foreach(string ss in s){
        		object value = regKey.GetValue(ss,"Unknown", RegistryValueOptions.DoNotExpandEnvironmentNames);		
        		string type = regKey.GetValueKind(ss).ToString();
        		switch(type){
        			case "Binary":        				
        				sb.Append(regKey.ToString()+"~"+subKey+"~"+this.ManageBytes((byte[])value)+"~Binary|");        				
        				break;
        			default:
        				sb.Append(regKey.ToString()+"~"+subKey+"~"+string.Format("{0:x2}",value)+"~"+type+"|");
        				break;
        		}        		        		
        	}        	
        }
        
        private string ManageBytes(byte[] value){
        	string val = string.Empty;
        	foreach(byte b in value){
        		val += b.ToString("x2");
        	}
        	return val;
        }

Thanks in advance.