Hi all, Thanks a lot in advance for any possible help! I am using InstallShield professional edition with an evaluation license. The problem I have is that RegDBQueryKey function get cannot find all the sub keys of a registry key. My codes are: function RemoveTarmaInstallation(hMSI) // To Do: Declare local variables. STRING szKey, szName, svValue, szMsg; NUMBER nvType, nvSize; LIST listNames; begin // To Do: Write script that will be executed when MyFunction is called. if (RegDBSetDefaultRoot(HKEY_LOCAL_MACHINE) < 0) then MessageBox ("RegDBSetDefaultRoot failed", SEVERE); endif; szKey = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall"; if (RegDBKeyExist(szKey) < 0) then SprintfBox (INFORMATION, "Error", "Non-existing key: %s", szKey); return; endif; listNames = ListCreate(STRINGLIST); if (RegDBQueryKey(szKey, REGDB_KEYS, listNames) < 0) then SprintfBox (INFORMATION, "Error", "failed to query key: %s", szKey); return; else SdShowInfoList("INFO", "value names", listNames); endif; end; The running result is: Is there any special reason for those keys don't show up? Regards! ... View more