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Options

• General
• User Interface
• Log
• Search Result

General

Add AllDup to the context menu of the Windows Explorer

This option displays AllDup in the Windows Explorer context menu for folders. This allows you to right-click on one or more folders to start a search. The following additional options can be selected:

• Context menu with Unicode support

  With this option, folders containing Unicode characters in their names can be passed to AllDup and searched through. This is the default option used by AllDup.

• Context menu without Unicode support

  With this option, no folders containing Unicode characters in their names can be passed to AllDup and searched. Use this option if your window system should not display a context menu in Windows Explorer with the first option. This option is not available on Windows 11.

If required, you can use the Register button to register the context menu on your Windows system if it is not displayed in the Windows Explorer context menu.

Unicode-Text Support

This option correctly displays Unicode characters from languages such as Chinese, Japanese, Korean, or Russian in the search result.

File Date Display Format

Here you can specify the format in which a file date should be displayed in the search result.

Application data folder

The folder in which the AllDup application data is saved is displayed here.

Folder for temporary files

At this folder AllDup will extract files from archives or create files necessary for the file preview. All temporary files that have been created after the search for duplicate files was started will be automatically deleted after closing the search result.

Exclude from scanning by Windows Defender

If you use Windows Defender as an active virus scanner under Windows 10/11, you can add file types or folders to its exclusion list and thus increase the speed of AllDup. The excluded file types and folders are then no longer checked by Windows Defender, which means that AllDup can examine this data more quickly and does not have to wait for each file until Windows Defender has completed its check.

• We recommend that you exclude the storage location of the application data from AllDup so that there are no delays caused by Windows Defender when accessing the work data.
• If you always compare many image files, then you should exclude the different file types of the images or the entire folder that contains the image files.

User Interface

Toolbars

Here you can set the design and font size of the toolbars in the program.

Text & Background Color

Here you can set the text and background color of the user interface. The following option can be selected:

• Standard
• Dark Mode
• Custom

Search Result

The color selection for the following objects from the search result is displayed here:

• Groups
• Selected files
• Files selected by the user
• Compressed Files
• Reference Files
• Hard Links

You can edit the color of the objects by setting the UI text and background color to Custom.

Log

Delete entries from log file when they are more than ...

This option causes entries to be automatically removed from the log file after a specified number of days.

Search Result

External program for comparing the contents of two files:

This option enables you to specify an external file comparison utility to be used with two highlighted files at the search result. Right-click two highlighted files at the search result and use the command 'Compare highlighted files'. The two highlighted files from the search result have to be specified via the wildcards %1 and %2. Example: C:\Tools\Windiff.exe %1 %2

%1 = "C:\Data\db.txt"
%2 = "X:\Backup\abc.txt"
%3 = C:\Data
%4 = X:\Backup
%5 = db.txt
%6 = abc.txt

Compare these file types using Microsoft Word:

This option enables you to specify various file extensions that will be opened with the compare function of Microsoft Word. Each of the file extensions has to be separated by a comma. Example: doc, docx, rtf

External Program to open a folder

This option enables you to specify an external program to be used to open a folder.
Example: explorer.exe "%1"
The placeholder %1 will be replaced with file path & file name and the placeholder %2 with the file path only:
%1 = "C:\Data\db.txt"
%2 = "C:\Data\

External Program to open with file(s)

This option enables you to specify an external program to be used to open with all highlighted files.
Example: C:\texteditor.exe %1
The placeholder %1 with be replaced with all highlighted files: "file1" "file2" ...