Windows Event ID 10005 – DCOM: Distributed COM Error

Start by identifying the specific DCOM application generating the error through Event Viewer analysis.

1. Open Event Viewer → Windows Logs → System
2. Filter for Event ID 10005 using the filter option
3. Examine the event details to locate the CLSID and application name
4. Use PowerShell to correlate CLSID with application:

Get-WinEvent -FilterHashtable @{LogName='System'; Id=10005} -MaxEvents 20 | Format-List TimeCreated, Id, LevelDisplayName, Message

5. Cross-reference the CLSID in the registry:

Get-ChildItem "HKLM:\SOFTWARE\Classes\CLSID" | Where-Object {$_.Name -like "*YOUR_CLSID*"}

6. Document the failing application for targeted troubleshooting

Adjust DCOM security settings to resolve permission-related activation failures.

1. Launch Component Services by running dcomcnfg.exe
2. Navigate to Component Services → Computers → My Computer → DCOM Config
3. Locate the failing application identified in Method 1
4. Right-click the application → Properties → Security tab
5. Configure Launch and Activation Permissions:
• Click Edit → Add → Enter the user/service account
• Grant Local Launch, Remote Launch, Local Activation, and Remote Activation
6. Configure Access Permissions similarly
7. Set Authentication Level to None for testing (revert after resolution)
8. Apply changes and restart the affected service:

Restart-Service -Name "ServiceName" -Force

Extend timeout periods to accommodate slow-starting DCOM applications.

1. Open Component Services (dcomcnfg.exe)
2. Navigate to the failing DCOM application properties
3. Go to Properties → Advanced tab
4. Increase Server Startup Timeout from default 30 seconds to 120 seconds
5. Alternatively, modify registry values directly:

# Increase global DCOM timeout
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Ole" -Name "CallFailureLoggingLevel" -Value 1
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Ole" -Name "EnableDCOMHTTP" -Value 1

6. For application-specific timeouts, modify the CLSID registry key:

# Replace {CLSID} with actual CLSID from Event 10005
$clsidPath = "HKLM:\SOFTWARE\Classes\CLSID\{YOUR_CLSID}\LocalServer32"
Set-ItemProperty -Path $clsidPath -Name "ServerExecuteTimeout" -Value 120000

7. Restart the system or affected services to apply changes
8. Monitor Event Viewer for resolution confirmation

Re-register DCOM components to resolve corrupted registration entries.

1. Identify the executable path of the failing DCOM application
2. Open an elevated Command Prompt or PowerShell
3. Re-register the DCOM server executable:

# For .exe files
Start-Process -FilePath "C:\Path\To\Application.exe" -ArgumentList "/regserver" -Wait

# For .dll files
regsvr32 "C:\Path\To\Component.dll"

4. Clear and rebuild DCOM configuration cache:

# Stop DCOM service
Stop-Service -Name "RpcSs" -Force
Stop-Service -Name "DcomLaunch" -Force

# Clear DCOM cache
Remove-Item -Path "C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Windows\UsrClass.dat*" -Force

# Restart services
Start-Service -Name "DcomLaunch"
Start-Service -Name "RpcSs"

5. Verify registration using Component Services browser
6. Test application functionality and monitor for Event ID 10005

Perform deep analysis using Process Monitor and DCOM logging for complex scenarios.

1. Download and run Process Monitor (ProcMon) from Microsoft Sysinternals
2. Configure ProcMon filters:
• Process Name contains the DCOM application name
• Operation is Process and Thread Activity
• Result contains ACCESS DENIED or NAME NOT FOUND
3. Enable detailed DCOM logging in the registry:

# Enable DCOM error logging
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Ole" -Name "EnableDCOMHTTP" -Value 1
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Ole" -Name "CallFailureLoggingLevel" -Value 1

# Enable DCOM security logging
New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Ole" -Name "LogSecurityFailures" -Value 1 -PropertyType DWord

4. Reproduce the DCOM error while monitoring with ProcMon
5. Analyze captured events for file access, registry access, and network activity patterns
6. Check Windows Security log for authentication failures:

Get-WinEvent -FilterHashtable @{LogName='Security'; Id=4625,4648,4672} -MaxEvents 50 | Where-Object {$_.TimeCreated -gt (Get-Date).AddHours(-1)}

7. Review DCOM-specific event logs:

Get-WinEvent -FilterHashtable @{LogName='System'; ProviderName='DCOM'} -MaxEvents 100

8. Correlate findings with system resource usage and network connectivity
9. Implement targeted fixes based on root cause analysis