What is dlashx_w.dll?

Dlashx_w.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about Drive Letter Access Component.

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Dlashx_w.dll file information

The process known as Drive Letter Access Component or Roxio DLA belongs to software Sonic DLA or Roxio DLA or Sonic UDF Reader by Sonic Solutions ( or Roxio (

Description: Dlashx_w.dll is not essential for Windows and will often cause problems. The file dlashx_w.dll is located in a subfolder of C:\Windows\System32. Known file sizes on Windows 10/8/7/XP are 110,652 bytes (97% of all occurrences) or 114,748 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 5CA3D70E-1895-11CF-8E15-001234567890. Dlashx_w.dll is a file with no information about its developer. The program has no visible window. The dlashx_w.dll file is able to monitor web browsers. It is not a Windows system file. There is no detailed description of this service. The program can be uninstalled in the Control Panel. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with dlashx_w.dll, you can ask for help from Support or uninstall Sonic DLA or Roxio DLA software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify dlashx_w.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as dlashx_w.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the dlashx_w.dll process on your PC to see if it is a threat. If Drive Letter Access Component has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Microsoft scan indicated this file is incompatible with IE8 and should be disabled. IE8 will not operate properly and the DLA presents a security risk in the IE8 environment.
dlashx_w.dll is a library program for DLA (Drive Letter Access) that works with Roxio Creator (and/or Sonic Solutions) "RecordNow" software to permit drag & drop of audio or data files onto a CD or DVD contents folder for immediate burning. I assume that it is a Browser Helper Object to permit files from right click "Save target as" links (e.g. *.jpg, *.mp3, or *.pdf) files to be saved directly from a browser link to a disk for burning, although I have always preferred to save such files directly to my hard drive first, before using DLA feature to drag a copy of the downloaded file to a disk for burning. I have never used DLA to copy a file directly from the browser to a CD's contents as the CD is burned. I plan to disable this feature in the IE browser only, and leave it available as an option for the Roxio burning software in my Windows XP system. I have not found the DLA feature of Roxio to be very handy, and seldom use it at all.
causing pop-ups on the site on my web browser.
Norton scan considers this a possible threat.
I just installed IE 8 and it told me the add-on was not compatible and that I should search for an update. My belief is that IE 8 is crashing for some of you becuase you do not have the update. I'm not quite sure what it is, but I think it's necessary.
Go to Add/Remove programs in control panel, then look for RecordNow and/or Sonic (Sonic DLA should also be present), if this is the case then you may need to remove all of these applications. Recordnow and Sonic ARE NOT REQUIRED to burn CD(s)/DVD(s) as Windows has its own burning utility, if you need one go for NERO!
  Simon   (further information)
Is associated with both cd\dvd burnign software, or VPN software. Not dangerous but not critical
Causes IE 8 to crash
  Someone who is hating life  
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of dlashx_w.dll: based on 29 votes with 9 reviews. 12 users think dlashx_w.dll is essential for Windows or an installed application. 11 users think it's neither essential nor dangerous. 2 users suspect danger. 4 users think dlashx_w.dll is dangerous and recommend removing it. 5 users don't grade dlashx_w.dll ("not sure about it").

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Best practices for resolving dlashx_w issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active dlashx_w process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the dlashx_w.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

dlashx_w.dll [all]