DCom Server Process Launcher (DComLaunch) service was introduced in Windows XP SP2. One of the major side-effects user face after disabling the DComLaunch service is that the Disk Defragmenter console fails to operate. The Analyze and Defragment buttons do not work. Also, launching the console Defrag (defrag.exe) utility causes the following error:
Windows cannot connect to the Disk Defragmenter engine
Enable the DCOM Process Launcher Service
1. Click Start, Run and type Services.msc
2. Double-click DCOM Server Process Launcher
3. Set its startup type to Automatic
4. Restart Windows.
Additional Information
Windows Firewall service may fail to start after disabling DComLaunch. See KB892504 titled The Windows Firewall service cannot start if the DCOM Process Launcher Service is disabled.
Related Posts
- Fix for Disk Defragmenter GUI Not Opening in Windows Vista
- Fix for Error “the Disk Defragmenter Is Not Installed on Your Computer” In Windows XP
- You Can Defrag Individual Drives in Vista SP1
- How to Modify or Disable Disk Defragmenter Schedule in Windows 7 and Windows Vista
- How to Run Disk Defragmenter on a Remote Computer
If you enjoyed this post, make sure you subscribe to our RSS feed! We feature Tips, Troubleshooting information, Scripts and Utilities for Microsoft Windows Operating Systems!
Prefer an E-mail subscription?
In order to defrag, I have my DCOM Server Process Launcher set at Manual and have Started.