Also try this as you may have a sticking service issue:
Stop Apache, MySQL if they are running.
Close/Exit the control panel.
Open a command prompt
Click on Run...
Remove old or sticking services.
sc delete apache2.2
Close the command console
Start the control panel and try install your services again or use the bat files provided in the various component's directories.
BTW - sc
is an acceptable abbreviation for sc.exe
ontroller and will delete any stray services that won't shut down by any normal means, among other services commands.
Microsoft explains the Service Controller Commands here
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