I purchased a lifetime ownership of Mark Katzenburger's EZPro Trading software, which also allowed one to participate in his daily trading chat room. The original premise was to trade the S&P emini contract using his software, but shortly thereafter, he began to sell other software trading products to embellish EZPro Trading. He also began to switch web sites, eventually stopped trading the ES contract in favor of oil futures, etc. as the results from his ES trades fell off. After taking several weeks off from trading, I returned to find the guy had vanished, namely, his web sites were taken down, he did not return email or tel. calls. I have to assume the guy is a fraudster.