On Friday 24/09/06, I deleted my thunderbird-profile-file without immediately realizing it. I realized it on Monday 24/09/07, by opening the program and getting an error message. A new profile-file was immediately initialized by the program and also a program-update was made to version 128.2.0esr (32-Bit)). Unfortunately, I do not know the version, I used before the update Using your instructions from the Mozilla knowledge-base, I was able to restore the file-situation, as it was before my mistake killing my profile. Although trying now for three days getting the old data (inbox, sent mails, address book) in the new profile by importing or over writing I didn't have any success. Trying to import old profile-data by the program-tool results in an error message. When overwriting the existing files with the old ones, I get new folders, but they were all empty. After long time of research in your knowledge-base, trying mentioned solutions without success, I suppose that it is no more a question of recreating a knew profile but a question of the program-update made on Monday and a data conflict between the two program versions. I Think the new version cannot handle with the old data. I would like to install the version I used before the update, but do not know whether which version it was nor where I could find an old program-version? Or is there a possibility to manage old data with the new version, and I do not know it? Perhaps you can reconstruct the old program-version by seeing the content in the folders of my old profile-file appended below (explorer screen shot) I would be grateful if You could help me retrieving my old data (Inbox, sent etc.).