Your posts are a bit thin on details.
How are you trying to start the XAMPP components?
Bat file or CP etc.
What error messages if any are you receiving?
xampp\apache\logs\error.log
Error messages when using the bat file etc.
Please try and give as much detail as possible for your particular issues (it helps).
If the services are stuck in the registry then you may not be able to start them again.
Try this:
Close the Control Panel
Open a command prompt.
(You can open a Command Prompt window in Vista in all the same ways that you can in Windows XP.
You can use the Command Prompt shortcut on the Start menu or you can type CMD in the Run dialog box).
At the prompt type:
sc delete apache2
sc delete mysql
Try again to start.
The majority of the great command line tools introduced with Windows XP are still available, and there are several new native to Vista.
Type
help at the command prompt or here:
http://commandwindows.com/vista-commands.htm
TIP
Here's a trick that I don't think many people are aware of.
Right-click on any folder on your Windows Vista machine while holding down the
shift key. (Works in XP also -
Open DOS Box)
You'll see an extra context-sensitive menu item there:
Open Command Prompt here.
Just click on this menu and a command window will open with the current working directory set to the folder's actual location.
In the past there was a
Windows XP powertoy that did this; now it's built into the operating system (albeit hidden away to protect the unwary from themselves).
What's really cool about this is that if the target folder is a network location, Windows Vista silently maps a network drive to that location before opening the folder (so that your command prompt has a valid path containing a drive letter) and then deletes the network drive once the command prompt is closed.
More Vista "Secrets" here:
http://blogs.msdn.com/tims/archive/tags ... fault.aspx
HTH
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