Tips to open DCO file

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

DCO file extension

File Name DisCryptor Encrypted Archive
File Developer COSECT, Ltd.
File Category Encoded Files

The DCO file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the DCO files. Below is a summary of the number of programs that support and open the DCO file on each system platform.

Operating systems
  • 3
  • 0
  • 0
  • 0
  • 0
  • 0

What is DCO file?

The file in the DCO format belongs to the Encoded Files category. The author of this format is COSECT, Ltd.. Encoded Files consists of 236 similar files. DisCryptor Encrypted Archive is most often found on 1 operating systems. The file will work on Windows systems, unfortunately not on others. The main program that supports this format is DisCryptor ENTERPRISE. This was created by COSECT, Ltd.. There are also 2 alternative programs to handle the DCO file. DisCryptor PERSONAL, DisCryptor FREE will apply when it is not possible to use DisCryptor ENTERPRISE.

How to open DCO file?

The most common problem when using DisCryptor Encrypted Archive is that a specific DCO is not associated with the program. This causes the file DCO to open by system applications not designed for this purpose, or to display a message that there is no associated program. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the DCO 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 DisCryptor ENTERPRISE

In this case, you should first verify that the DisCryptor ENTERPRISE application is installed on the computer. This can be achieved by typing DisCryptor ENTERPRISE into the operating system search engine. If we do not have this program, it is worth installing it, as it will help you automatically associate the file DCO with DisCryptor ENTERPRISE. Later in this article you will find a list of programs that can open DCO files.

Step 2. Create association of DisCryptor ENTERPRISE with DCO files

If the application is or has been freshly installed, but the DCO file still does not use the DisCryptor ENTERPRISE program, it means no association. It is most convenient to call the context menu with the right mouse button and select Properties. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can set the program to handle this type. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. Checking the "Always use the selected program ..." box will permanently associate the DCO file with the DisCryptor ENTERPRISE program.

Step 3. Update DisCryptor ENTERPRISE to the latest version

If, despite the association of the DisCryptor ENTERPRISE program with the DisCryptor Encrypted Archive file, the file still does not open, check the program version and possibly update it to the newest version. In this case, use the COSECT, Ltd. website or update the program from the application.

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

Of course, it may happen that despite the above steps, the file still does not work. File problems can be divided into the following:

The DCO file may be unusually small compared to the original file. This suggests truncating the DCO file contents when downloading or copying. The only repair option is to download the file again.
The operating system may be infected with a computer virus. A virus scan using an up-to-date antivirus program should fix the problem. 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 DCO file. Sometimes virus-infected DCO files cannot be recovered, so make a backup in advance.
Older version of DCO file may not always be supported by the latest software version. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
There can be many reasons for this. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair DCO file corruption. The easiest way to restore the file is from a backup or by contacting COSECT, Ltd., but this one can be expensive. Not all damage can be reversed.
The program can also signal the fact of encryption. The encrypted file DCO except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. The problem is only writing to the file, not reading it. It is best to move DCO to a different directory.
This problem usually affects more complex files. You may find that another program you are using is preventing you from working with the file. Just close unnecessary programs. Sometimes you have to wait for the session to the file DCO to close. However, some background programs may block the DCO file while scanning. If nothing helps, please reset the device.