Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.
So today the question was posed,
What happens if you stop the Central Administration or Web service in SharePoint in a small farm/single server?
Well maybe you should start them again. How you ask?
Use the stsadm command to do so. Simply run stsadm from the 12 hive (by default C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\bin) with the following options
For the Web Servicestsadm.exe -o provisionservice -action start -servicetype Microsoft.SharePoint.Administration.SPWebService
For central administrationstsadm.exe -o provisionservice -action start -servicetype Microsoft.SharePoint.Administration.SPWebService -servicename WSS_Administration
Remember Me