Tips to open QHCP file

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

QHCP file extension

File Name Qt Help Collection Project
File Developer Digia Oyj
File Category Document Files

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

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

What is QHCP file?

The file with the extension QHCP is the Document Files file type. The author of this format is Digia Oyj. In addition to this file, the Document Files category includes 574 related files. Qt Help Collection Project is most often found on 1 operating systems. These systems consist of Windows, although it may occasionally be found on another system, it will be non-functional. The main program that supports this format is Qt SDK. This was created by Digia Oyj.

How to open QHCP file?

An often recurring problem with Qt Help Collection Project is that QHCP is not associated with the correct program file. This is manifested by the fact that QHCP files open in unusual applications or do not have an assigned program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the QHCP 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 Qt SDK

An often overlooked issue is to make sure that Qt SDK is installed on the computer. This can be achieved by typing Qt SDK 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 QHCP with Qt SDK. Later in this article you will find a list of programs that can open QHCP files.

Programs to open QHCP file

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

Step 2. Create association of Qt SDK with QHCP files

If, despite the installed application, the QHCP file does not start in the Qt SDK 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. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Changes can be made using the "Change" button. 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 QHCP file with the Qt SDK program.

Step 3. Update Qt SDK to the latest version

The fault may also lie with the Qt SDK program, it is possible that Qt Help Collection Project requires a newer version of the program. This can be done using the application (if it provides such options) or from the Digia Oyj website and install the latest version.

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

The problem may also be with the file itself if the above steps don't work. This could be due to the file itself, the cleanest issues are:

Very often, the file may be size 0 or incomplete. This is most often caused by a problem while downloading the QHCP 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. Some antivirus vendors also provide free online scanners. However, it is important to scan the entire system, not only the file QHCP or the program directory. However, remember that not every infected QHCP file can be recovered, so it is important to take care of regular backups.
This can happen especially when the program is dynamically developed and the structure of the QHCP 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 this. Repairing is very dependent on the file type. Some programs offer the ability to automatically repair QHCP file corruption. You can restore the file from a backup or use Digia Oyj help.
The program indicates that the file is encrypted or corrupted. The encrypted QHCP 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. It is best to move QHCP to a different directory.
This can happen on a file that does not support multiple access. Some file types can only be opened in one program at a time. Running programs (including those in the background) should be verified. Sometimes it is necessary to wait a while before referencing the QHCP file again. Some anti-virus or backup software may occupy the QHCP file for a certain period of time. If nothing helps, please reset the device.