在“应用程序和设置日志”下的子目录中创建事件日志

我一直在努力让子文件夹也能正常工作，因为我希望有一个这样的结构：

- Application and Services Logs
-- Company Name
--- Application 1
---- ApplicationLog
--- Application 2
---- SecurityLog
---- OperationalLog

我找不到任何直接使用C或PowerShell的方法，但是，在对注册表项和上提供的文档进行了一些尝试和错误之后https://learn.microsoft.com/en-us/windows/desktop/eventlog/eventlog-key我终于开始工作了。

似乎您需要在HKLM''Software''Microsoft''Windows''CurrentVersion''WINEVT''Channels中创建注册表项，其中主注册表项名称是"文件夹"结构的键。"-"被视为一种更深层次的结构。例如：CompanyName''Application''Log，应该是一个名为CompanyName Application Log的键。

以下是使用PowerShell执行此操作的示例脚本：

# Create the eventlog (in a subfolder structure)
# Params()
$PrimaryEventKey = 'Company'
$ApplicationName = 'Application'
$LogName = 'NewLog'
# Vars()
$primarylocation = 'HKLM:'Software'Microsoft'Windows'CurrentVersion'WINEVT'Channels'
$LogName = $PrimaryEventKey + '-' + $ApplicationName + '-' + $LogName
$EventRoot = (Join-Path $primarylocation $LogName)
if (!(Test-Path $EventRoot)) {
New-Item -Path ($secondarylocation + ''' + $Logname)
New-ItemProperty -Path ($secondarylocation + ''' + $Logname) -Name providerGuid -PropertyType String -Value "{$($GUID)}"
New-Item -Path $EventRoot
New-ItemProperty -Path $EventRoot -Name Enabled -PropertyType DWord -Value 1
New-ItemProperty -Path $EventRoot -Name Type -PropertyType DWord -Value 1
New-ItemProperty -Path $EventRoot -Name Isolation -PropertyType DWord -Value 0
New-ItemProperty -Path $EventRoot -Name RestrictGuestAccess -PropertyType String -Value 1
New-ItemProperty -Path $EventRoot -Name OwningPublisher -PropertyType String -Value "{$($GUID)}"
    # See https://learn.microsoft.com/en-us/windows/desktop/eventlog/eventlog-key for documentation on the ChannelAccess or or RestrictGuestAccess (see: RestrictGuestAccess / Isolation)
}
else {
    Write-Warning 'Event Log (Key) Already exists in registry'
}
# Write into the event log (Example)
$eventType = ([System.Diagnostics.EventLogEntryType]::Information)
$evt = New-Object System.Diagnostics.EventLog($LogName)
$evt.Source = "SomeSource"
$evt.WriteEntry("random message", $eventType, 60001)

如果仍然需要，我为自己找到了一个好的工作解决方案，尽管它使用的是Powershell而不是C#。你需要两个步骤：

1. 创建日志本身
2. 创建（如果需要）事件源

这里我的代码创建一个子文件夹位于自定义事件日志：

function New-WindowsCustomLog
{
    <#
    .SYNOPSIS
        Create a custom Eventlog
    .DESCRIPTION
        This function will create a new eventlog located under 'Application and Serviceprotocolls' using a company subfolder and if needed additional functional subfolder.
    .PARAMETER PrimaryKey
        Mostly used for the company name.
    .PARAMETER ApplicationName
        Application name.
    .PARAMETER ApplicationFunction
        Optional: If you need to create another subfolder for functions.
    .PARAMETER LogName
        The name of the Log itself.
    .PARAMETER ProviderGUID
        Provider/Publisher GUID, if you don't have one, create by using New-GUID enter without {} around.
    .EXAMPLE
                New-WindowsCustomLog -PrimaryKey 'My Company' -ApplicationName 'My Cool Tool' -LogName 'Operational' -ProviderGUID '{49ab7419-7113-40d1-8910-8be1c3f96d21}'
    .EXAMPLE
                New-WindowsCustomLog -PrimaryKey 'My Company' -ApplicationName 'My Cool Tool' -ApplicationFunction 'Incoming' -LogName 'Requests' -ProviderGUID '{49ab7419-7113-40d1-8910-8be1c3f96d21}'
                New-WindowsCustomLog -PrimaryKey 'My Company' -ApplicationName 'My Cool Tool' -ApplicationFunction 'Outgoing' -LogName 'Requests' -ProviderGUID '{49ab7419-7113-40d1-8910-8be1c3f96d21}'
    #>
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true,
                   Position = 0)]
        [string]$PrimaryKey,
        [Parameter(Mandatory = $true,
                   Position = 1)]
        [string]$ApplicationName,
        [Parameter(Position = 2)]
        [string]$ApplicationFunction,
        [Parameter(Mandatory = $true,
                   Position = 3)]
        [string]$LogName,
        [Parameter(Mandatory = $true,
                   Position = 4)]
        [String]$ProviderGUID
    )
    $publisherGuid = "{$($ProviderGUID)}"
    $primaryLocation = 'HKLM:'Software'Microsoft'Windows'CurrentVersion'WINEVT'Channels'
    $secondaryLocation = 'HKLM:'SYSTEM'CurrentControlSet'Services'EventLog'Application'
    #$thirdLocation = 'HKLM:'SYSTEM'CurrentControlSet'Services'EventLog'System' # needed for driver purposes
    $publisher = 'HKLM:'SOFTWARE'Microsoft'Windows'CurrentVersion'WINEVT'Publishers'
    if (-not ([string]::IsNullOrEmpty($ApplicationFunction)))
    {
        $primaryLogName = $PrimaryKey + '-' + $ApplicationName + '-' + $ApplicationFunction + '§' + $LogName
        $secondaryLogName = $PrimaryKey + '-' + $ApplicationName + '-' + $ApplicationFunction
    }
    else
    {
        $primaryLogName = $PrimaryKey + '-' + $ApplicationName + '-' + '§' + $LogName
        $primaryLogNameSlash = $primaryLogName.Replace("§", "/")
        $secondaryLogName = $PrimaryKey + '-' + $ApplicationName
    }
    $evtxFilePath = "%SystemRoot%'System32'Winevt'Logs'$($secondaryLogName)%4$($LogName).evtx"
    $primaryEventRoot = Join-Path -Path $primaryLocation -ChildPath $primaryLogName
    $secondaryEventRoot = Join-Path -Path $secondaryLocation -ChildPath $secondaryLogName
    #$thirdEventRoot = Join-Path -Path $thirdLocation -ChildPath $secondaryLogName # needed for driver purposes
    $publisherEventRoot = Join-Path -Path $publisher -ChildPath $publisherGuid
    if (-not (Test-Path $primaryLogNameSlash)) #$primaryEventRoot.Replace("§", "/")))
    {
        &reg add $primaryLogNameSlash.Replace(":", "") # used because I wasn't able to write a real / to registry key name by CMDLET
        New-ItemProperty -Path $primaryLogNameSlash -Name 'Enabled' -PropertyType DWord -Value 1
        New-ItemProperty -Path $primaryLogNameSlash -Name 'Type' -PropertyType DWord -Value 1
        New-ItemProperty -Path $primaryLogNameSlash -Name 'Isolation' -PropertyType DWord -Value 0
        New-ItemProperty -Path $primaryLogNameSlash -Name 'RestrictGuestAccess' -PropertyType String -Value "1"
        New-ItemProperty -Path $primaryLogNameSlash -Name 'OwningPublisher' -PropertyType String -Value $publisherGuid
    }
    if (-not (Test-Path $secondaryEventRoot))
    {
        New-Item -Path $secondaryEventRoot
        New-ItemProperty -Path $secondaryEventRoot -Name 'ProviderGuid' -PropertyType String -Value $publisherGuid
        New-ItemProperty -Path $secondaryEventRoot -Name 'File' -PropertyType ExpandString -Value $evtxFilePath
    }
    <# needed for driver purposes
    if (-not (Test-Path $thirdEventRoot))
    {
        New-Item -Path $thirdEventRoot
        New-ItemProperty -Path $thirdEventRoot -Name 'ProviderGuid' -PropertyType String -Value $publisherGuid
        #New-ItemProperty -Path $thirdEventRoot -Name 'EventMessageFile' -PropertyType ExpandString -Value $evtMessageFile
    }
    #>
    if (-not (Test-Path $publisherEventRoot))
    {
        New-Item -Path $publisherEventRoot -Value $secondaryLogName
        New-ItemProperty -Path $publisherEventRoot -Name 'Enabled' -PropertyType DWord -Value 1
        $channelReference = Join-Path -Path $publisherEventRoot -ChildPath "ChannelReference"
        New-Item -Path $channelReference
        New-ItemProperty -Path $channelReference -Name 'Count' -PropertyType DWord -Value 1
        $reference0 = Join-Path -Path $channelReference -ChildPath "0"
        New-Item -Path $reference0 -Value $primaryLogName.Replace("§", "/")
        New-ItemProperty -Path $reference0 -Name 'Flags' -PropertyType DWord -Value 0
        New-ItemProperty -Path $reference0 -Name 'Id' -PropertyType DWord -Value 16
    }
    return $primaryLogNameSlash
}

接下来是一个创建事件源的简单功能（如果日志可用并且源尚未注册）：

function New-WindowsEventSource
{
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true,
                   Position = 0)]
        [ValidateScript({ [System.Diagnostics.EventLog]::Exists($_) })]
        [string]$EventLogName,
        [Parameter(Mandatory = $true,
                   Position = 1)]
        [ValidateScript({ (-not ([System.Diagnostics.EventLog]::SourceExists($_))) })]
        [string]$EventSourceName
    )
    [System.Diagnostics.EventLog]::CreateEventSource($EventSourceName, $EventLogName)
}

以下是如何创建源/填充EventLog:

New-WindowsEventSource -EventLogName "My Company-My Cool Tool-Incoming/Requests" -EventSourceName "webbrowser"
Write-EventLog -LogName "My Company-My Cool Tool-Incoming/Requests" -Source "webbrowser" -EntryType Information -EventId 100 -Message "New request received."

亲切的问候和愉快的编码