If you use LCK, you must register. The trial period is strictly limited to no more than two weeks. There is no warranty for LCK, expressed or implied. Installation is simple, LCK does not require any configuration. LCK will only work on a system with a color monitor.
Color is used as a debugging tool.
Programs that allow some color programs to run on monochrome monitors will not work with LCK as text is written directly to memory address for the color text area bypassing DOS or BIOS calls. The opening and closing parenthesis have the same color. When the end of a code segment is reached unbalanced parenthesis will be noted. If parenthesis are balanced the statement CODE OKAY is shown. When ever and where ever a semicolon is found, the semicolon and the rest of the line is considered a comment.