From the developer: ""This is a subset of GRMS software for customer PC. GClient is free. So, you don't need registeration of GClient at customepr PC,after buying the GRMS Software. Grms is a solution to control PCs(max 300) in Internet Cafe,PC-Bang and so on. Grms is being updated since 1998 and you can download the trial version for actual testing. ""GRMS Basic software function: Flexible charging system. Easy to control customer PC. Sales management function. Stock management function. Private account managment. Detail reports for account check of shop Logging report for PC lock, unlock status. And more.""