There is debate over the security of free software in comparison to proprietary software, with a major issue being security through obscurity. A popular quantitative test in computer security is to use relative counting of known unpatched security flaws. Generally, users of this method advise avoiding products that lack fixes for known security flaws, at least until a fix is available.
Got image files of entire disks you would like to read, but don't want to over-write your existing drives or go buy a bunch of blank DVDs just to read the files? This software lets you mount the image (ISO, BIN, or CCD format) with a double click, as if it was a readable drive all by itself. In fact, you can load up to eight virtual drives simultaneously.
Proprietary software on the other hand tends to use a different business model, where a customer of the proprietary application pays a fee for a license to legally access and use it. This license may grant the customer the ability to configure some or no parts of the software themselves. Often some level of support is included in the purchase of proprietary software, but additional support services (especially for enterprise applications) are usually available for an additional fee. Some proprietary software vendors will also customize software for a fee.
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