If you have a problem with machines checking back in after being deleted (say, if you are no longer supporting the client), you can script the following command to uninstall the Kaseya service:
sc delete KaseyaAgent
Welcome to MUNDY.CO - IT Knowledgebase written by Daniel Mundy from Adelaide, Australia.
Need help with anything? Email
This email address is being protected from spambots. You need JavaScript enabled to view it.
or call 0407 175 859.

If you have a problem with machines checking back in after being deleted (say, if you are no longer supporting the client), you can script the following command to uninstall the Kaseya service:
sc delete KaseyaAgent