We implemented a Level 2 adapter, which must just allow to open files from our application and save them back. Now we are experiencing some little trouble with PowerPoint 2007 (.pptx) files. We are able to open them, but as soon as we click on "Save" we get a message "The original document contained advanced feature set that this application doesn't support. The following properties in this document may be lost if you continue to save it with the same file name: 1. Microsoft Office PowerPoint 2007 Presentation. Click 'Continue' if you want to apply changes made to this document and keep a copy of original document. You will need to enter a new name for the modified document". Clicking "Continue" a "Save As" window appears. I just press OK and I get a message "The file file... already exists. Do you want to replace the existing file?" Confirming with "Yes" I get another popup saying "This file is read-only". So we are not able to save it back to our application.
Now, since our application already perform file versioning and we only want to give the user the possibility to edit existing files (and not to create new ones), we would like that in such cases the application would only ask "... You would like to continue?" and if you press "Continue" / OK than the file is put to our application in PowerPoint 2003 version.
Would something like this be possible? Or do you see other solution to this problem?
Thanks a lot for your help
Regards,
Patrick