RE: Scripting Client Upgrades

From: Branimir Petrovic <BranimirP_at_cpas.com>
Date: Tue, 6 Jul 2004 13:02:56 -0400
Message-ID: <33678E78A2DD4D418396703A750048D401024EA0@RIKER>

> Can you please share the experience how to delete Windows
> registry value
> (parameter) or even whole branch using scripting.
> Sorry for basic question.
> I know how make new entries in Win registry,
> even able to update, but there knowledge hole regarding deleting.

This small example is done in Windohs native scripting (abomination is better term) known as Visual Basic Script:

' ////////////////////////////////////////////////////////////////////

' FileName: DemoRmoveKey.vbs

' ////////////////////////////////////////////////////////////////////

Sub RemoveKey(gcsKeyToDelete)' removes passed registry key

    Dim oShell
    Set oShell = CreateObject("Wscript.Shell")     On Error Resume Next
    oShell.RegDelete gcsKeyToDelete
    If Err.Number Then

MsgBox "Error # " & CStr(Err.Number) & " " & Err.Description Else

MsgBox "Removed registry key", vbInformation, gcsKeyToDelete End If
End Sub

' Uncomment next line and kiss your ORACLE registry key good bye: 'CONST sKeyToRemove = "HKLM\SOFTWARE\ORACLE\"

' But this is OK to try since there is no such key in your registry, ' make it manually and see what happens: CONST sKeyToRemove =
"HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\XYZ\"

RemoveKey sKeyToRemove

While removing known registy key is trivial, enumerating registry keys is not. You'd need to be familiar with another horrid object model - the notorious WMI to pull trick like this (straight from note 124353.1):

	3.g. Go to HKEY_CLASSES_ROOT, remove all keys that begin with 
		Ora or ORCL (e.g. Oracle..., ORADC..., ORAMMC..., OraOLE...,

		OraPerf... and ORCL...).

For kinky details on WMI have a look at: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnclinic/ht ml/scripting06112002.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/ wmi_start_page.asp

Another place to have a look at since you can get some working examples: http://www.microsoft.com/technet/community/scriptcenter/default.mspx

Forgetting about Winodohs natives, move to wonderful world of Python or Perl and be able to do more magic with lesser amount of effort and far less headaches...

Branimir

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Received on Tue Jul 06 2004 - 12:00:12 CDT