reading registry entry and setting registry data using installshield

 
   RegDBSetDefaultRoot(HKEY_LOCAL_MACHINE);
   RegDBCreateKeyEx ("SOFTWARE\\projects", "" );  
  
   RegDBSetKeyValueEx ("SOFTWARE\\projects",szName,REGDB_STRING,"Karnataka",nSize);
 
    RegDBGetKeyValueEx("SOFTWARE\\projects",szName,nvType,svValue,nvSize);
 
    MessageBox("value is:"+svValue,INFORMATION);