A service for the customer support is described as Helpdesk, which supports users with the operation of the hard- and software. The support can be carried out via e-Mail or telephone. Employees of the Helpdesk normally use a specific ticket system which organizes the execution of customer requests. With specific software programs and technological devices it’s possible to carry out a telemaintenance on the computer of the customer. For the fault analysis and for the solving of problems there is mostly being used an extensive data base. The service quality of a business company is often being assessed after the quality of the Helpdesk.