PC meter

PC meter is a compact and portable application that enables users to monitor the virtual and physical memory of their system. It is simple to work with it, as it comes packed with a limited functionality.
As installation is not a requirement, you can just drop the executable file anywhere on the hard disk and run it immediately.
It is also possible to move PC meter to a USB flash disk or similar storage unit, in order to run it on any workstation with minimum effort.
What's important to keep in mind is that the Windows Registry section does not get new entries, and leftover files are not kept on the hard drive after program removal.
The interface of the application is based on a standard window with a plain look. It may take a while to load at startup but that's because PC meter automatically gathers data to reveal the current used and available virtual and physical memory, along with their total size occupied on disk. Unfortunately, PC meter does not comprise any other features. For instance, you cannot log all activity to file for further scrutiny.
The app is pretty light on the system resources, using a low-to-moderate quantity of CPU and RAM. It has a good response time and works smoothly, without hanging, crashing or showing error dialogs. Too bad that PC meter  has not been updated for a long time.