General-purpose components are selectively included in a toolkit hosted by hosting provider computing devices. The general-purpose components are software components. The general-purpose components in the toolkit are available over a computer network to end user computing devices. The end user computing devices utilizes general-purpose components in the toolkit to provide system administration solutions. The system administration solutions are web applications hosted by the hosting provider computing devices. The system administration solutions provide an ability to perform administration tasks on on-premises computer systems of the end users. A hosting provider computing device is configured such that the end user computing devices are able to utilize the general-purpose components in the toolkit on a Software-as-a-Service (SaaS) basis.