Error while running ATCOR3

[natalia]

Dear Sadame Moahammed,

Thank you for your question. The software application ATCOR for IMAGINE 2016 was a separate product developed by Geosystems, Germany. This is different from the current IDL/ENVI based packages ATCOR-2/3 or ATCOR-4 which are provided by our company ReSe Applications LLC.

For getting support regarding ATCOR for IMAGINE you should contact the provider company Geosystems at:
support@geosystems.de

Note:  I'm not sure if they are still able to provide you with some support in relation to ATCOR for IMAGINE in the past version 2016. Please just ask them directly.

Best Regards, 
Natalia