PMDH File Extension

What is PMDH file?

PMDH is a file extension commonly associated with Pegasus Mail For Mac files. Pegasus Mail For Mac specification was created by David Harris. Files with PMDH extension may be used by programs distributed for Windows platform. PMDH file format, along with 6033 other file formats, belongs to the Misc Files category. The most popular software that supports PMDH files is Pegasus Mail. Pegasus Mail software was developed by David Harris, and on its official website you may find more information about PMDH files or the Pegasus Mail software program.

Programs which support PMDH file extension

Below is a table that list programs that support PMDH files. PMDH files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with PMDH extension?

Problems with accessing PMDH may be due to various reasons. Fortunately, most common problems with PMDH 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 PMDH files.

Step 1. Download and install Pegasus Mail

The most common reason for such problems is the lack of proper applications that supports PMDH files installed on the system. The solution to this problem is very simple. Download Pegasus Mail and install it on your device. The full list of programs grouped by operating systems can be found above. The safest method of downloading Pegasus Mail installed is by going to developer’s website (David Harris) and downloading the software using provided links.

Step 2. Check the version of Pegasus Mail and update if needed

You still cannot access PMDH files although Pegasus Mail 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 Pegasus Mail installed, it may not support PMDH format. The latest version of Pegasus Mail should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open PMDH files to Pegasus Mail

If you have the latest version of Pegasus Mail installed and the problem persists, select it as the default program to be used to manage PMDH 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.

Change the default application in Windows

• Right-click the PMDH file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• Finally select Look for another app on this PC, point to the folder where Pegasus Mail is installed, check the Always use this app to open PMDH files box and conform your selection by clicking OK button

Change the default application in Mac OS

• By clicking right mouse button on the selected PMDH file open the file menu and choose Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with PMDH extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the PMDH file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper PMDH file. Being unable to access the file can be related to various issues.

1. Check the PMDH file for viruses or malware

If the file is infected, the malware that resides in the PMDH file hinders attempts to open it. Scan the PMDH file as well as your computer for malware or viruses. If the PMDH file is indeed infected follow the instructions below.

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

If the PMDH file was sent to you by someone else, ask this person to resend the file to you. 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 PMDH extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Some files require elevated access rights to open them. Switch to an account that has required privileges and try opening the Pegasus Mail For Mac file again.

4. Check whether your system can handle Pegasus Mail

If the system is under havy load, it may not be able to handle the program that you use to open files with PMDH extension. In this case close the other applications.

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

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Pegasus Mail For Mac file. It may be the case that the PMDH files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the PMDH file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on PMDH file.