Macompatsvc.exe crashes Windows Management Instrumentation on Windows servers

Technical Articles ID: KB94093
Last Modified: 5/10/2021

Environment

McAfee Agent (MA) 5.7.0, 5.7.1, 5.6.x

Problem

System crash occurs on supported Windows Servers. The crash points to a McAfee Agent Macompatsvc.exe process.

McAfee Agent uses Windows Management Instrumentation (WMI) to obtain system properties. For example:

Serial Number
Original equipment manufacturer (OEM) ID
System model
Manufacturer and Users Unique Identifier (UUID)

Cause

The McAfee Agent makes IWbemServices calls to send WMI queries to get the values. At times, macompatsvc.exe does not properly release the objects returned from the finalizing operations in the Arbitrator’s queue. The result is more WMI active operations in the system, which in turn results in resource leaks.

Solution

This issue is resolved in McAfee Agent 5.7.2, which is available from either the ePO Software Manager, or the Product Downloads site.

To view other known and resolved issues, see KB93773 - McAfee Agent 5.7.x Known Issues.

NOTE: You need a valid Grant Number to access the update.

Workaround

We investigated this issue and a Proof of Concept (POC) Build is currently available to resolve the issue. To obtain the POC Build, log on to the ServicePortal and create a Service Request. Include this article number in the Problem Description field.

Affected Products

Known Issue/Product Defect
McAfee Agent 5.7.x
McAfee Agent 5.6.x

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Knowledge Center

Macompatsvc.exe crashes Windows Management Instrumentation on Windows servers

Environment

Problem

Cause

Solution

Workaround

Affected Products

Languages:

Title

Title

Knowledge Center

Macompatsvc.exe crashes Windows Management Instrumentation on Windows servers

Environment

Problem

Cause

Solution

Workaround

Affected Products

Languages:

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