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Editorial Team
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Asked: 2026-05-12T08:50:46+00:00

I’m trying to do some web development. I cannot start IIS (I need to

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I’m trying to do some web development. I cannot start IIS (I need to run some Web Services).

As of about a month ago, the “COM+ System Application” service has started failing with this error:

The COM+ System Application service
failed to start due to the following
error: Access is denied.

DCOM also logs an error in the event log:

DCOM got error “Access is denied. ”
attempting to start the service
COMSysApp with arguments “” in order
to run the server:
{ECABAFBC-7F19-11D2-978E-0000F8757E2A}

When I start IIS and the WWW service, everthing seems to work until I hit port 80 on my machine at which time the IIS/WWW services both crash unexpectedly:

The World Wide Web Publishing service
terminated unexpectedly. It has done
this 1 time(s).

The following event is placed in the application log as well:

The run-time environment has detected
an inconsistency in its internal
state. This indicates a potential
instability in the process that could
be caused by the custom components
running in the COM+ application, the
components they make use of, or other
factors. Error in
f:\xpsp3\com\com1x\src\comsvcs\package\cpackage.cpp(1184),
hr = 80070005: InitEventCollector
failed

I have searched google until my fingers are numb. I’ve searched this site to no avail as well.

I have tried:

  • running the COM+ System Application service as an administrator.
  • reinstalling SP3 for XP
  • giving the “SERVICE” account full control to %SYSTEMROOT%\Registration
  • removing XP Security hotfixes installed about the time it stopped working
  • I’ve removed and reinstalled COM+ (it’s possible, check google)

Any insight on the COM+ subsystem, it’s files and settings or just how it operates would be greatly appreciated.

I need to get this problem resolved so I can get back to work.

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1 Answer

  1. Editorial Team

    Sorry all.

    I forgot to update this when I found the solution… Well, it was self-inflicted. Some months ago, I removed the execute permissions from dllhost.exe. I hadn’t been coding asp.net web apps at the time so I didn’t notice the problem and couldn’t put two and two together very quickly.

    I eventually found it by turning on file system failed auditing on my Windows folder hive. I saw a mess of access denied messages related to dllhost.exe and remembered what I’d done.

    Thanks for the help.

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