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.NET Runtime Optimization Service event 1101 errors after Domain Controller promotion

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This article helps you resolve the .NET Runtime Optimization Service event 1101 error that occurs after Domain Controller promotion.

Original product version:   Windows Server 2008 R2
Original KB number:   2002607

Symptoms

A newly promoted Windows Server 2008 R2 Domain Controller writes the following two Application Event Log errors after its first reboot:

  • .NET Runtime Optimization Service (clr_optimization_v2.0.50727_64)

    Log Name: Application
    Source: .NET Runtime Optimization Service
    Date: 8/11/2009 1:53:26 PM
    Event ID: 1101
    Task Category: None
    Level: Error
    Keywords: Classic
    User: N/A
    Computer: computer_name.domain.com
    Description:
    .NET Runtime Optimization Service (clr_optimization_v2.0.50727_64) - Failed to compile: Microsoft.GroupPolicy.Targeting.Interop, Version=2.0.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=amd64 . Error code = 0x800700b6

  • .NET Runtime Optimization Service (clr_optimization_v2.0.50727_32)

    Log Name: Application
    Source: .NET Runtime Optimization Service
    Date: 8/11/2009 1:51:29 PM
    Event ID: 1101
    Task Category: None
    Level: Error
    Keywords: Classic
    User: N/A
    Computer: computer_name.domain.com
    Description:
    .NET Runtime Optimization Service (clr_optimization_v2.0.50727_32) - Failed to compile: Microsoft.GroupPolicy.Targeting.Interop, Version=2.0.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=x86 . Error code = 0x800700b6

The two errors only occur once and never repeat on the server again. The computer name in the above example is from a Microsoft training domain and will be different on your computer.

Cause

This is caused by a managed code manifest linking defect with gppref.dll and comctl32.dll.

Resolution

Ignore these two errors unless they occur under different circumstances than described in the Symptoms section. These errors are benign and cosmetic; they do not affect the functionality of any applications or of group policy processing.