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  • When running Fledermaus for the first time, please right click the Fledermaus icon and choose 'Run as Administrator'. This allows the license file to be installed. This only needs to be done when adding or updating the license file.
  • If you are looking for our free viewer please see our iView4D page.


To download our products please login with your Support Ticket System account or Download account. If you require a download account please click on the  Register Download Account button next to the Login button.


This is hidden on purpose. Will never be visible


If you already have an account for our Support Ticket System you do not need to register! To download our products, just login with the same username and password.


The information provided will be used to contact you when there is information about the downloaded product. None of this information will be shared or distributed. See our Privacy Policy for details.

Please click Close after registration is succeeded.


Please enter the e-mail address used for registration. You will receive an e-mail with a link which will enable you to change your password.


Password reset is only for download accounts. If you have a QPS Support Ticket account you can reset your password here.

Please click Close after submitting your e-mail address











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