DCU File Extension

What is DCU file?

DCU is a file extension commonly associated with Delphi Compiled Unit files. Delphi Compiled Unit format was developed by Embarcadero Technologies. Files with DCU extension may be used by programs distributed for Windows platform. DCU file format, along with 1205 other file formats, belongs to the Developer Files category. Delphi is by far the most used program for working with DCU files. Software named Delphi was created by Embarcadero Technologies, Inc.. In order to find more detailed information on the software and DCU files, check the developer’s official website.

Programs which support DCU file extension

Programs that can handle DCU files are as follows. Files with DCU suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with DCU extension?

Problems with accessing DCU may be due to various reasons. Fortunately, most common problems with DCU files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with DCU files.

Step 1. Get the Delphi

The most common reason for such problems is the lack of proper applications that supports DCU files installed on the system. To address this issue, go to the Delphi developer website, download the tool, and install it. It is that easy The full list of programs grouped by operating systems can be found above. If you want to download Delphi installer in the most secured manner, we suggest you visit Embarcadero Technologies, Inc. website and download from their official repositories.

Step 2. Check the version of Delphi and update if needed

You still cannot access DCU files although Delphi is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of Delphi installed, it may not support DCU format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Delphi.

Step 3. Associate Delphi Compiled Unit files with Delphi

If the issue has not been solved in the previous step, you should associate DCU files with latest version of Delphi you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

The procedure to change the default program in Windows

• Right-click the DCU file and choose Open with option
• Select Choose another app → More apps
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Delphi is installed. Now all that is left is to confirm your choice by selecting Always use this app to open DCU files and clicking OK.

The procedure to change the default program in Mac OS

• Right-click the DCU file and select Information
• Open the Open with section by clicking its name
• From the list choose the appropriate program and confirm by clicking Change for all....
• Finally, a This change will be applied to all files with DCU extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the DCU is not faulty

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the DCU file in question. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the DCU file for viruses or malware

If the DCU is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the DCU file is indeed infected follow the instructions below.

2. Verify that the DCU file’s structure is intact

If you obtained the problematic DCU file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with DCU extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Delphi

The operating systems may note enough free resources to run the application that support DCU files. Close all running programs and try opening the DCU file.

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with Delphi Compiled Unit files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle DCU files.

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