The licence key controls the availability of functionality, providers and limits of your Invantive products. A licence key is associated with a licence contract. A licence contract has a unique code consisting of a 'L' plus a number. Each licence contract can have multiple licence keys. Licence keys are automatically revoked when they have not been used for three months. When a licence contract concerns a subscription, the contract is automatically ended when it has not been used for three months. ## Interactive and OS-Applications For interactive and OS-applications, a file named `invantive.lic` is searched within the user's home directory folder 'Invantive'. The licence key for use of Invantive products is normally stored within the product's configuration files after loading it through the user interface of the product. ## Web Applications For web applications, a file named `invantive.lic` is searched within the folder `App_Data/Config`. ## Additional Locations A deviating licence location can be specified using environment variables described in [[License Service]].