Jqs.exe is a process which many people know little to nothing about. Other than that little process in the background that only uses a few megabytes of memory (both physical and virtual), most people are clueless. However, the helpfulness of jqs.exe is commonly unknown due to a lack of understanding as to what it does. Jqs.exe isn’t something that generally gets used very often, however it is designed so that it won’t interfere with your normal computing enough to make a noticeable difference. Jqs.exe isn’t a very complex process, so understanding how it works and what it does isn’t very difficult.

Some of the more advanced computer users may believe that jqs.exe has something to do with Java – which is quite true. Jqs.exe is a low priority, background process which is really only useful for people that use Java applets on a regular basis. JQS is actually an acronym short for Java Quick Starter – it constantly loads Java files used for running applets, which then reduces the start up time when starting up an applet.

Jqs.exe works to try and reduce the start up time for Java applets by pre-fetching many of the Java Runtime Environment (JRE) files very often into the memory of the computer. It also makes a great deal of I/O read processes, as well as many queries to the Windows Registry. For the user, this means that some of the data and runtime files will already be pre-loaded when trying to load up a Java-based applet. This is helpful mainly for people that deal with a great deal of applets, however users that only use applets every once in a while will still get a slight boost in loading times of Java applets.

Jqs.exe was built for a single purpose, and it was built very well for that purpose. It doesn’t take much memory in the grand scheme of things, however if another process requires the memory then jqs.exe will stop using said memory. This means that it won’t get in the way much at all, even when the rest of your computing needs to use every last byte of memory available.

If you only use applets every few days (or weeks, or months), then shutting down the jqs.exe process may be the best option to save a few megabytes of memory, as the time performance increases are not noticeable enough for someone that rarely uses Java applets.

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