OptiTune is a cloud based solution that lets you manage thousands of PCs in your organization. Designed for both enterprises and MSPs, OptiTune lets you deploy apps, install updates, check for malware, view performance data, and perform a complete hardware and software inventory. You can also provide remote assistance to end users through OptiTune's built in Remote Assistance feature, or connect to any computer or server using Remote Connect.
Other powerful tools include the Remote Command Prompt, which lets you run a command prompt right from your browser, and the Remote Task Manager. OptiTune is free for your first year (for up to 10 computers), and only $1.95/computer per month afterwards.