CheckLog doesn't demand of any special installation/setup program, all the software is delivered in distributive archives (ZIP). To expand files from an archive and place it in a desired folder on a hard disk – still is not a problem. But at once in the course of copying you are convinced that the software doesn't contain viruses and won't break safety of your computer. Simply follow the step-by-step instruction, and everything will be OK.
For a start download the version you need from the official site. The free trial version consists of the one and only distributive archive. The productive version consists of a Kernel package, and it can extend additional INFO, SYNC packages and others (according to your desire).