We are looking to translate file between Pro Engineering and SolidWorks Version 2001 Plus to communicate with a new client. In receiving files, fromthis client, in Pro/E format, SolidWorks would recongize them as long as the proper add-on were activated. But in the translation, we received a message stating the files were "encrypted". It directed us to download software called PS-Exchange from Delcam.com. In using the software to decrypt the Pro/E file, you are required to pay a fee to Delcam for a voucher to use the software. It is not a one time fee, but a fee for each decryption. Our client insists that they did not activate an "encryption" option. Has anyone ever encounter this problem? Does Pro/E encrypt file without the user being able to change it? Is there a cost free way around this? Any help would be appreciated. Thank you in advance.