Forum Options New Topic Gallery Categories All Knowledge General System SPICE FDTD BPM Grating Fiber Exchange Home › Forums › EXCHANGE › license issue license issue Negeri Merga (joined May 2020) Participant HEllo my optisystem 17 license expried what can i do Responses (1): Reply June 15, 2020 at 12:20 pm #67360 Negeri MergaParticipant HEllo my optisystem 17 license expried what can i do June 19, 2020 at 8:36 am #67391 Ahmad AtiehModerator Hello Negeri, I think you need to decide if you’d to acquire OptiSystem software or lease it per year. We don’t offer extensions to the trial period. Regards, Ahmad 1 Login You must be logged in to reply to this topic.