It seems you're trying to download and use a software called AllDup to search and remove duplicate files on your computer.

To get started with using AllDup, please follow the instructions:

1. Start AllDup and go to the menu 'Language' and select the command 'Create language file lang.txt'. This will create a copy of the file 'langeng.txt'.

2. Activate the option 'Use the language file lang.txt' at the menu 'Language'.

3. Use the command 'Open language file lang.txt' at the menu 'Language' to open the file 'lang.txt' with your text editor.

AllDup is a powerful tool that allows you to find duplicates of any file type, such as text, pictures, music, or movies. It utilizes a fast search algorithm and enables you to find duplicates using various criteria like File Name, File Extension, and File Size.

If you're interested in downloading the software, I can provide you with the download link:

AllDup 4.5.52 + Portable (48.83 MB)

You can also visit the official website to learn more about the software and its features:

https://www.alldup.com/

Please note that AllDup is available for Windows 7, Windows 8, and Windows 10 in both 32-bit and 64-bit versions.

Let me know if you have any further questions or need help with the download process!

Downloading AllDup 4.5.50