TKDTutorage software solutions are free; it is licensed UserKeys that are purchased. A UserKey is a small, encrypted file that allows a solution to open and it sets the operating limits of the solution.

Solution UserKeys are licensed in levels. Each increasing level costs a little more, allows more features to be used, and increases the solution's operating limits. UserKey levels help keep user costs low since users will only need to purchase the level that best suits their needs. Users may upgrade to a higher level at any time by paying the difference in price between their current level and the chosen higher level.

UserKey levels:

• Level 0. All solution downloads include a FREE Level 0 UserKey that limits use of the solution to an evaluation period (period length varies depending on the solution). A Level 0 UserKey allows a solution to function at its highest level; however, after the evaluation period ends, the solution will no longer fuction.

• Level 1. This is the first licensed UserKey level. Level 1 UserKeys have no expiration date. For some solutions, such as RoundMaster, this is the highest level.

• Some solutions have additional UserKey levels. For example, TaskMaster has five levels.

The UserKey file is linked to the specific copy of the solution and the solution's UserData file. This linkage means that a UserKey file, its UserData file, and its linked copy of a solution must all be used together—one will not operate without the other being present. For a solution to open, its UserKey must be:

• Located in the solution's UserFiles folder.

• Specific to the solution.

• Not expired.

• Linked to the specific copy of the solution.