Opening an HDMP File

The HDMP file type is primarily associated with Windows Vista.

HDMP	File extension: HDMP
	File type:	heap dump

What is an HDMP file?

HDMP files mostly belong to Windows Vista by Microsoft. A HDMP file is an error dump or a memory/heap dump generated by Windows XP or Windows Vista operating system when an application or the system crashes. HDMP format is similar to MDMP and DMP files generated after a system crashes. However, unlike DMP dumps, HDMP dumps contain uncompressed errors and trace logs. Because HDMP dumps are uncompressed, such dumps are not sent to Microsoft's error report servers.

How to open HDMP files

You need a suitable software like Windows Vista to open an HDMP file. You need a suitable software like Windows Vista from Microsoft to open an HDMP file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your HDMP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HDMP file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HDMP Text Viewer

Choose your .hdmp file to analyze

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Online File Viewer

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Unable to Open a .HDMP File? Quick Solutions:

Because .HDMP files can originate from different programs, they aren't universally openable.

Identify the Source: If it appeared after a System crash, it's likely a Windows Vista (or later) heap dump. If sent by a developer, it may be for debugging.
Check the Header: Open the file in a hex viewer to inspect the first bytes:
- MDMP or PAGEDUMP indicates a Microsoft Windows crash dump.
- Readable text suggests a custom error log.
Use the Original Software: You usually need the original debugging tools; try Microsoft Visual Studio or WinDbg, or ask the sender.
Use this Webpage: Drag and drop the file into our viewer to detect its format, extract metadata, and preview readable text.

Technical Data for HDMP File Extension

File classification:

System

Related files:

mdmp, dmp, search-ms, sfcache, csv

an hdmp heap dump is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with HDMP files

Associate the HDMP file extension with the correct application.
Update your software that should actually open heap dumps. Because only the current version supports the latest HDMP file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Windows Vista update.
To make sure that your HDMP file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .HDMP file online - secure, fast, and no downloads needed.