Delete a registry Key

[enanrum]

Anyone know a way of deleting a key like:

[HKEY_CLASSES_ROOT\some\value]

I use a 'Windows Registry Update' action to create it - but it doesn't get removed un un-install becuase the values change in here after installing!!!

Thanks,
Tom

[RobertDickau]

If nothing else, in the Uninstall sequence perhaps launch regedit.exe silently with a .reg file with contents like this:

REGEDIT4

[-HKEY_CLASSES_ROOT\some\value]

The hyphen before the key name indicates Regedit should delete the key. Use with caution, naturally.

[pg_mani]

use the InstallScript function

RegDBDeleteKey (HKEY_CLASSES_ROOT\\some\\value);

or

VBScript function
i = WShell.RegDelete("HKEY_CLASSES_ROOT\\some\\value")

[TheTraveler]

Here how to do it in InstallShield Script...

///////////////////////////////////////////////////////////////////////////////
// My_DeleteRegistryKey                                                      //
///////////////////////////////////////////////////////////////////////////////
function My_DeleteRegistryKey(strKey)
begin
    return My_DeleteRegistryKeyEX(HKEY_LOCAL_MACHINE, strKey);
end;

///////////////////////////////////////////////////////////////////////////////
// My_DeleteRegistryKeyEX                                                    //
///////////////////////////////////////////////////////////////////////////////
function My_DeleteRegistryKeyEX(nRoot, strKey)
    STRING  strTemp;
    NUMBER  nResult;
begin
    RegDBSetDefaultRoot (nRoot);
    m_strLastError = "";
    strTemp        = "";
    nResult        =  0;

    nResult = RegDBDeleteKey(strKey);
    if nResult < 0 then
        m_strLastError = "Couldn't Delete Registry Key: \""+ strKey +"\"";
        Sprintf(strTemp, "...ERROR:  Couldn't Delete Registry Key: \"%s\"\n...ERROR:  Result:= %d", strKey, nResult);
    endif;

end;

From your example, the line of code would be this...

My_DeleteRegistryKeyEX(HKEY_CLASSES_ROOT, "some\\value");