Thanks SSD forum, here are the responses:
1. I apologize for not naming the other spyware algorithm. The "certain" spyware program was Spyware Doctor, and it seems to state that ikitek key logger is on one of my machines at work. As a programmer, I did not want to name another software product because I did not want to compare SSD with any other program. However, we do have to "benchmark" our codes against other algorithms, and our algorithms are not accepted by peers unless results are the same or better than commercial algorithms that have been in development for, say, 30 years by large groups of scientists.
2. At any rate, I am trying to understand why "commercial" key loggers fall in a special category. Doesn't a commercial key logger spy on the user?
3. If a commerical key logger is truly found one of my systems at work, does it mean that it had to be manually installed by someone else, or could it be done silently by e.g. phishing, or installed as an add on to another program, etc.?
4. What shareware-freeware do you recommend I use if I have to detect commerical spyware? (a sys admin told me once that 90% of hacking at work is done by the employer).
Thanks, lepet