Tips to open DUS file

Can't open the DUS file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open DUS files as well as a list of programs that support DUS files.

DUS file extension

File Name Readiris Font Dictionary
File Developer I.R.I.S.
File Category Misc Files

The DUS file is supported on 2 operating systems. Depending on your operating system, you may need different software to handle the DUS files. Below is a summary of the number of programs that support and open the DUS file on each system platform.

Operating systems
  • 1
  • 1
  • 0
  • 0
  • 0
  • 0

What is DUS file?

The file with the extension DUS is the Misc Files file type. It was designed by I.R.I.S.. Misc Files consists of 6033 similar files. Readiris Font Dictionary is supported by 2 operating systems. These systems consist of Mac OS, Windows, although it may occasionally be found on another system, it will be non-functional. It is recommended to use Readiris to handle this file. This is a program created by I.R.I.S. s.a.. This file type can also be opened by 1 other programs.

How to open DUS file?

The main problem with Readiris Font Dictionary is that the DUS file is incorrectly associated with programs. Thus, when you open DUS, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the DUS file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Readiris

In this case, you should first verify that the Readiris application is installed on the computer. This can be achieved by typing Readiris into the operating system search engine. If it is not, installation may solve the problem, as most applications create file associations during installation. Later in this article you will find a list of programs that can open DUS files.

Programs to open DUS file

Remember to download programs supporting DUS files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Readiris with DUS files

If, despite the installed application, the DUS file does not start in the Readiris application, you must create a file association. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can select the desired program. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. However, it is important to check the "Always use the selected program ..." box, this will allow you to permanently associate the DUS file with the Readiris application.

Step 3. Update Readiris to the latest version

If, despite the association of the Readiris program with the Readiris Font Dictionary file, the file still does not open, check the program version and possibly update it to the newest version. In this case, use the I.R.I.S. s.a. website or update the program from the application.

Step 4. Check for the following problems with the DUS file

Of course, it may happen that despite the above steps, the file still does not work. This could be due to the file itself, the cleanest issues are:

The affected file may be 0 KB or smaller than expected. This is most often caused by a problem while downloading the DUS file. Downloading the file again should fix the problem.
The most common cause here is computer viruses. A quick virus scan using an up-to-date antivirus program should clear up any doubts. If this is not possible, you can use the online scanner. For the best results, we will scan the entire operating system, not just our DUS file. Sometimes virus-infected DUS files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the DUS files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for the failure. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair DUS file corruption. The easiest way is to restore the file from a backup, if there is one, or contact I.R.I.S.
The program indicates that the file is encrypted or corrupted. The encrypted DUS files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
Some of the system directories are excluded from modification. The problem is only writing to the file, not reading it. If possible, you can try to move the DUS file to another location.
This problem only occurs with more complex files. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. However, some background programs may block the DUS file while scanning. If nothing helps, please reset the device.