一键修改termsrv让你的Windows支持多客户端远程，支持24H2

第一步，修改组策略

Win+R 打开运行窗口,输入gpedit.msc，打开本地组策略编辑器，依次选择计算机配置 —>管理模板—>Windows组件—>远程桌面服务—>连接。

配置“允许用户通过使用远程桌面服务进行远程连接”，选择：已启用；

配置“限制连接的数量”，点击“已启用”，其中“允许的RD最大连接数”可以自己视情况而定；

配置“将远程桌面服务用户限制到单独的远程桌面服务会话”，选择：已启用；

第二步，修改termsrv.dll

网上找到的那些修改termsrv的教程，都过时了，还得下个hex软件，很麻烦，这里分享的脚本来自一个国外作者，一键完成。

代码纯搬运，来源可以看脚本内容，看脚本内的备注，从win7到win11最新的24H2都支持（修改的内容是不同的）。

使用方法：把代码保存成一个ps1文件，右键powershell运行或在powershell窗口里运行即可，作者也写了停止和启动远程服务的逻辑，但第一步的组策略部分还是需要自己修改。

注意如果无法运行的话，在系统设置里搜索powershell，打开“允许本地Powershell脚本在不签名的情况下运行”。

#Requires -Version 5.1

<#PSScriptInfo

.VERSION 1.0

.GUID 41543292-9400-41d5-8bb8-5fe43f167a03

.AUTHOR Fabiano Silva

.COPYRIGHT Copyright (c) Fabiano Silva

.TAGS Windows PowerShell Multiple RDP

.PROJECTURI https://github.com/fabianosrc/TermsrvPatcher

#>

<#
.SYNOPSIS
    Patch termsrv.dll so that multiple remote users can open an RDP session on a non-Windows Server computer
.DESCRIPTION
    This script patches the termsrv.dll file to allow multiple simultaneous sessions via
    Remote Desktop Connection (RDP) on non-Windows Server computers
.LINK
    http://woshub.com/how-to-allow-multiple-rdp-sessions-in-windows-10
    https://www.mysysadmintips.com/windows/clients/545-multiple-rdp-remote-desktop-sessions-in-windows-10
#>

# Self-elevate the script so with a UAC prompt since this script needs to be run as an Administrator in order to function properly
if (-Not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]'Administrator')) {
    switch ((Get-Culture).Name) {
        'pt-BR' { Write-Host 'Você não executou este script como Administrador. Este script será executado automaticamente como Administrador.' -ForegroundColor Green }
        Default { Write-Host 'You didn''t run this script as an Administrator. This script will self elevate to run as an Administrator and continue.' -ForegroundColor Green }
    }

    Start-Sleep -Milliseconds 2500
    Start-Process PowerShell.exe -ArgumentList ("-NoProfile -ExecutionPolicy Bypass -File `"{0}`"" -f $PSCommandPath) -Verb RunAs
    Exit
}

$OSArchitecture = (Get-CimInstance -ClassName Win32_OperatingSystem).OSArchitecture

$termsrvDllFile = "$env:SystemRoot\System32\termsrv.dll"
$termsrvDllCopy = "$env:SystemRoot\System32\termsrv.dll.copy"
$termsrvPatched = "$env:SystemRoot\System32\termsrv.dll.patched"

$patterns = @{
    Pattern = [regex]'39 81 3C 06 00 00 0F (?:[0-9A-F]{2} ){4}00'
    Win24H2 = [regex]'8B 81 38 06 00 00 39 81 3C 06 00 00 75'
}

function Get-OSInfo {
    $OSInfo = Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion'

    [PSCustomObject]@{
        CurrentBuild = $OSInfo.CurrentBuild
        BuildRevision = $OSInfo.UBR
        FullOSBuild = "$($OSInfo.CurrentBuild).$($OSInfo.UBR)"
        DisplayVersion = $OSInfo.DisplayVersion
        InstallationType = $OSInfo.InstallationType
    }
}

function Get-OSVersion {
    [version]$OSVersion = [System.Environment]::OSVersion.Version
    $installationType = (Get-OSInfo).InstallationType

    if ($OSVersion.Major -eq 6 -and $OSVersion.Minor -eq 1) {
        return 'Windows 7'
    } elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -lt 22000 -and $installationType -eq 'Client') {
        return 'Windows 10'
    } elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -gt 22000) {
        return 'Windows 11'
    } elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -lt 22000 -and $installationType -eq 'Server') {
        return 'Windows Server 2016'
    } elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -eq 20348) {
        return 'Windows Server 2022'
    } else {
        return 'Unsupported OS'
    }
}

function Update-Dll {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory)]
        [regex]$InputPattern,

        [Parameter(Mandatory)]
        [string]$Replacement,

        [Parameter(Mandatory)]
        [string]$TermsrvDllAsText,

        [Parameter(Mandatory)]
        [string]$TermsrvDllAsFile,

        [Parameter(Mandatory)]
        [string]$TermsrvDllAsPatch,

        [Parameter(Mandatory)]
        [System.Security.AccessControl.FileSecurity]$TermsrvAclObject
    )

    begin {
        $match = $TermsrvDllAsText -match $InputPattern
        $patch = $TermsrvDllAsText -match $Replacement
    }

    process {
        if ($match) {
            Write-Host "`nPattern matching!`n" -ForegroundColor Green

            $dllAsTextReplaced = $TermsrvDllAsText -replace $InputPattern, $Replacement

            # Use the replaced string to create a byte array again.
            [byte[]] $dllAsBytesReplaced = -split $dllAsTextReplaced -replace '^', '0x'

            # Create termsrv.dll.patched from the byte array.
            [System.IO.File]::WriteAllBytes($TermsrvDllAsPatch, $dllAsBytesReplaced)

            fc.exe /b $TermsrvDllAsPatch $TermsrvDllAsFile
            <#
            .DESCRIPTION
                Compare patched and original DLL (/b: binary comparison) and displays the differences between them.
            .NOTES
                Expected output something like:

                00098BA2: B8 8B
                00098BA3: 00 99
                00098BA4: 01 30
                00098BA5: 00 03
                00098BA7: 89 00
                00098BA8: 81 8B
                00098BA9: 38 B1
                00098BAA: 06 34
                00098BAB: 00 03
                00098BAD: 90 00
            #>

            Start-Sleep -Milliseconds 1500

            # Overwrite original DLL with patched version:
            Copy-Item -Path $TermsrvDllAsPatch -Destination $TermsrvDllAsFile -Force
        } elseif ($patch) {
            Write-Host "The file is already patched. No changes are needed.`n" -ForegroundColor Green
        } else {
            Write-Host "The pattern was not found. Nothing will be changed.`n" -ForegroundColor Yellow
        }

        # Restore original Access Control List (ACL):
        Set-Acl -Path $TermsrvDllAsFile -AclObject $TermsrvAclObject

        # Start services again...
        Start-Service TermService -PassThru
    }
}

function Stop-TermService {
    try {
        Stop-Service -Name TermService -Force -ErrorAction Stop
    } catch {
        Write-Warning -Message $_.Exception.Message
        return
    }

    while ((Get-Service -Name TermService).Status -ne 'Stopped') {
        Start-Sleep -Milliseconds 500
    }

    Write-Host "`nThe Remote Desktop Services (TermService) has been stopped sucsessfully`n" -ForegroundColor Green
}

Stop-TermService

# Save Access Control List (ACL) of termsrv.dll file.
$termsrvDllAcl = Get-Acl -Path $termsrvDllFile

Write-Host "Owner of termsrv.dll: $($termsrvDllAcl.Owner)"

# Create a backup of the original termsrv.dll file.
Copy-Item -Path $termsrvDllFile -Destination $termsrvDllCopy -Force

# Take ownership of the DLL...
takeown.exe /F $termsrvDllFile

# Get Current logged in user (changed by .NET class, because in remote connection WMI Object cannot retrieve the user)
$currentUserName = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name

# Grant full control to the currently logged in user.
icacls.exe $termsrvDllFile /grant "$($currentUserName):F"

# Read termsrv.dll as byte array to modify bytes
$dllAsByte = [System.IO.File]::ReadAllBytes($termsrvDllFile)

# Convert the byte array to a string that represents each byte value as a hexadecimal value, separated by spaces
$dllAsText = ($dllAsByte | ForEach-Object { $_.ToString('X2') }) -join ' '

$commonParams = @{
    TermsrvDllAsText = $dllAsText
    TermsrvDllAsFile = $termsrvDllFile
    TermsrvDllAsPatch = $termsrvPatched
    TermsrvAclObject = $termsrvDllAcl
}

switch (Get-OSVersion) {
    'Windows 7' {
        if ($OSArchitecture -eq '64-bit') {
            switch ((Get-OSInfo).FullOSBuild) {
                '7601.23964' {
                    $dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 2F C3 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `
                    -replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `
                    -replace '83 7C 24 50 00 74 18 48 8D', '83 7C 24 50 00 EB 18 48 8D'
                }
                '7601.24546' {
                    $dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 3E C4 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `
                    -replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `
                    -replace '83 7C 24 50 00 74 43 48 8D', '83 7C 24 50 00 EB 18 48 8D'
                }
                Default {
                    $dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 3E C4 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `
                    -replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `
                    -replace '83 7C 24 50 00 74 43 48 8D', '83 7C 24 50 00 EB 18 48 8D'
                }
            }
        }

        # Use the replaced string to create a byte array again.
        [byte[]] $dllAsBytesReplaced = -split $dllAsTextReplaced -replace '^', '0x'

        # Create termsrv.dll.patched from the byte array.
        [System.IO.File]::WriteAllBytes($termsrvPatched, $dllAsBytesReplaced)

        fc.exe /B $termsrvPatched $termsrvDllFile
        <#
        .DESCRIPTION
            Compares termsrv.dll with tersrv.dll.patched and displays the differences between them.
        .NOTES
            Expected output something like:

            00098BA2: B8 8B
            00098BA3: 00 99
            00098BA4: 01 30
            00098BA5: 00 03
            00098BA7: 89 00
            00098BA8: 81 8B
            00098BA9: 38 B1
            00098BAA: 06 34
            00098BAB: 00 03
            00098BAD: 90 00
        #>

        Start-Sleep -Milliseconds 1500

        # Overwrite original DLL with patched version:
        Copy-Item -Path $termsrvPatched -Destination $termsrvDllFile -Force

        # Restore original Access Control List (ACL):
        Set-Acl -Path $termsrvDllFile -AclObject $termsrvDllAcl

        Start-Sleep -Milliseconds 2500

        # Start services again...
        Start-Service TermService -PassThru
    }
    'Windows 10' {
        Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'
    }
    'Windows 11' {
        if ((Get-OSInfo).DisplayVersion -eq '23H2') {
            Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'
        } elseif ((Get-OSInfo).DisplayVersion -eq '24H2') {
            Update-Dll @commonParams -InputPattern $patterns.Win24H2 -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90 EB'
        }
    }
    'Windows Server 2016' {
        Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'
    }
    'Windows Server 2022' {
        Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'
    }
    'Unsupported OS' {
        Write-Host 'Unable to get OS Version'
    }
}

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#Requires -Version 5.1

<#PSScriptInfo

.VERSION 1.0

.GUID 41543292-9400-41d5-8bb8-5fe43f167a03

.AUTHOR Fabiano Silva

.COPYRIGHT Copyright (c) Fabiano Silva

.TAGS Windows PowerShell Multiple RDP

.PROJECTURI https://github.com/fabianosrc/TermsrvPatcher

.SYNOPSIS

Patch termsrv.dll so that multiple remote users can open an RDP session on a non-Windows Server computer

.DESCRIPTION

This script patches the termsrv.dll file to allow multiple simultaneous sessions via

Remote Desktop Connection (RDP) on non-Windows Server computers

.LINK

http://woshub.com/how-to-allow-multiple-rdp-sessions-in-windows-10

https://www.mysysadmintips.com/windows/clients/545-multiple-rdp-remote-desktop-sessions-in-windows-10

# Self-elevate the script so with a UAC prompt since this script needs to be run as an Administrator in order to function properly

if (-Not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]'Administrator')) {

switch ((Get-Culture).Name) {

'pt-BR' { Write-Host 'Você não executou este script como Administrador. Este script será executado automaticamente como Administrador.' -ForegroundColor Green }

Default { Write-Host 'You didn''t run this script as an Administrator. This script will self elevate to run as an Administrator and continue.' -ForegroundColor Green }

}

Start-Sleep -Milliseconds 2500

Start-Process PowerShell.exe -ArgumentList ("-NoProfile -ExecutionPolicy Bypass -File `"{0}`"" -f $PSCommandPath) -Verb RunAs

Exit

}

$OSArchitecture = (Get-CimInstance -ClassName Win32_OperatingSystem).OSArchitecture

$termsrvDllFile = "$env:SystemRoot\System32\termsrv.dll"

$termsrvDllCopy = "$env:SystemRoot\System32\termsrv.dll.copy"

$termsrvPatched = "$env:SystemRoot\System32\termsrv.dll.patched"

$patterns = @{

Pattern = [regex]'39 81 3C 06 00 00 0F (?:[0-9A-F]{2} ){4}00'

Win24H2 = [regex]'8B 81 38 06 00 00 39 81 3C 06 00 00 75'

}

function Get-OSInfo {

$OSInfo = Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion'

[PSCustomObject]@{

CurrentBuild = $OSInfo.CurrentBuild

BuildRevision = $OSInfo.UBR

FullOSBuild = "$($OSInfo.CurrentBuild).$($OSInfo.UBR)"

DisplayVersion = $OSInfo.DisplayVersion

InstallationType = $OSInfo.InstallationType

}

function Get-OSVersion {

[version]$OSVersion = [System.Environment]::OSVersion.Version

$installationType = (Get-OSInfo).InstallationType

if ($OSVersion.Major -eq 6 -and $OSVersion.Minor -eq 1) {

return 'Windows 7'

} elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -lt 22000 -and $installationType -eq 'Client') {

return 'Windows 10'

} elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -gt 22000) {

return 'Windows 11'

} elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -lt 22000 -and $installationType -eq 'Server') {

return 'Windows Server 2016'

} elseif ($OSVersion.Major -eq 10 -and $OSVersion.Build -eq 20348) {

return 'Windows Server 2022'

} else {

return 'Unsupported OS'

}

function Update-Dll {

[CmdletBinding()]

param (

[Parameter(Mandatory)]

[regex]$InputPattern,

[Parameter(Mandatory)]

[string]$Replacement,

[Parameter(Mandatory)]

[string]$TermsrvDllAsText,

[Parameter(Mandatory)]

[string]$TermsrvDllAsFile,

[Parameter(Mandatory)]

[string]$TermsrvDllAsPatch,

[Parameter(Mandatory)]

[System.Security.AccessControl.FileSecurity]$TermsrvAclObject

)

begin {

$match = $TermsrvDllAsText -match $InputPattern

$patch = $TermsrvDllAsText -match $Replacement

}

process {

if ($match) {

Write-Host "`nPattern matching!`n" -ForegroundColor Green

$dllAsTextReplaced = $TermsrvDllAsText -replace $InputPattern, $Replacement

# Use the replaced string to create a byte array again.

[byte[]] $dllAsBytesReplaced = -split $dllAsTextReplaced -replace '^', '0x'

# Create termsrv.dll.patched from the byte array.

[System.IO.File]::WriteAllBytes($TermsrvDllAsPatch, $dllAsBytesReplaced)

fc.exe /b $TermsrvDllAsPatch $TermsrvDllAsFile

.DESCRIPTION

Compare patched and original DLL (/b: binary comparison) and displays the differences between them.

.NOTES

Expected output something like:

00098BA2: B8 8B

00098BA3: 00 99

00098BA4: 01 30

00098BA5: 00 03

00098BA7: 89 00

00098BA8: 81 8B

00098BA9: 38 B1

00098BAA: 06 34

00098BAB: 00 03

00098BAD: 90 00

Start-Sleep -Milliseconds 1500

# Overwrite original DLL with patched version:

Copy-Item -Path $TermsrvDllAsPatch -Destination $TermsrvDllAsFile -Force

} elseif ($patch) {

Write-Host "The file is already patched. No changes are needed.`n" -ForegroundColor Green

} else {

Write-Host "The pattern was not found. Nothing will be changed.`n" -ForegroundColor Yellow

}

# Restore original Access Control List (ACL):

Set-Acl -Path $TermsrvDllAsFile -AclObject $TermsrvAclObject

# Start services again...

Start-Service TermService -PassThru

}

function Stop-TermService {

try {

Stop-Service -Name TermService -Force -ErrorAction Stop

} catch {

Write-Warning -Message $_.Exception.Message

return

}

while ((Get-Service -Name TermService).Status -ne 'Stopped') {

Start-Sleep -Milliseconds 500

}

Write-Host "`nThe Remote Desktop Services (TermService) has been stopped sucsessfully`n" -ForegroundColor Green

}

Stop-TermService

# Save Access Control List (ACL) of termsrv.dll file.

$termsrvDllAcl = Get-Acl -Path $termsrvDllFile

Write-Host "Owner of termsrv.dll: $($termsrvDllAcl.Owner)"

# Create a backup of the original termsrv.dll file.

Copy-Item -Path $termsrvDllFile -Destination $termsrvDllCopy -Force

# Take ownership of the DLL...

takeown.exe /F $termsrvDllFile

# Get Current logged in user (changed by .NET class, because in remote connection WMI Object cannot retrieve the user)

$currentUserName = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name

# Grant full control to the currently logged in user.

icacls.exe $termsrvDllFile /grant "$($currentUserName):F"

# Read termsrv.dll as byte array to modify bytes

$dllAsByte = [System.IO.File]::ReadAllBytes($termsrvDllFile)

# Convert the byte array to a string that represents each byte value as a hexadecimal value, separated by spaces

$dllAsText = ($dllAsByte | ForEach-Object { $_.ToString('X2') }) -join ' '

$commonParams = @{

TermsrvDllAsText = $dllAsText

TermsrvDllAsFile = $termsrvDllFile

TermsrvDllAsPatch = $termsrvPatched

TermsrvAclObject = $termsrvDllAcl

}

switch (Get-OSVersion) {

'Windows 7' {

if ($OSArchitecture -eq '64-bit') {

switch ((Get-OSInfo).FullOSBuild) {

'7601.23964' {

$dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 2F C3 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `

-replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `

-replace '83 7C 24 50 00 74 18 48 8D', '83 7C 24 50 00 EB 18 48 8D'

}

'7601.24546' {

$dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 3E C4 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `

-replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `

-replace '83 7C 24 50 00 74 43 48 8D', '83 7C 24 50 00 EB 18 48 8D'

}

Default {

$dllAsTextReplaced = $dllAsText -replace '8B 87 38 06 00 00 39 87 3C 06 00 00 0F 84 3E C4 00 00', 'B8 00 01 00 00 90 89 87 38 06 00 00 90 90 90 90 90 90' `

-replace '4C 24 60 BB 01 00 00 00', '4C 24 60 BB 00 00 00 00' `

-replace '83 7C 24 50 00 74 43 48 8D', '83 7C 24 50 00 EB 18 48 8D'

}

# Use the replaced string to create a byte array again.

[byte[]] $dllAsBytesReplaced = -split $dllAsTextReplaced -replace '^', '0x'

# Create termsrv.dll.patched from the byte array.

[System.IO.File]::WriteAllBytes($termsrvPatched, $dllAsBytesReplaced)

fc.exe /B $termsrvPatched $termsrvDllFile

.DESCRIPTION

Compares termsrv.dll with tersrv.dll.patched and displays the differences between them.

.NOTES

Expected output something like:

00098BA2: B8 8B

00098BA3: 00 99

00098BA4: 01 30

00098BA5: 00 03

00098BA7: 89 00

00098BA8: 81 8B

00098BA9: 38 B1

00098BAA: 06 34

00098BAB: 00 03

00098BAD: 90 00

Start-Sleep -Milliseconds 1500

# Overwrite original DLL with patched version:

Copy-Item -Path $termsrvPatched -Destination $termsrvDllFile -Force

# Restore original Access Control List (ACL):

Set-Acl -Path $termsrvDllFile -AclObject $termsrvDllAcl

Start-Sleep -Milliseconds 2500

# Start services again...

Start-Service TermService -PassThru

}

'Windows 10' {

Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'

}

'Windows 11' {

if ((Get-OSInfo).DisplayVersion -eq '23H2') {

Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'

} elseif ((Get-OSInfo).DisplayVersion -eq '24H2') {

Update-Dll @commonParams -InputPattern $patterns.Win24H2 -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90 EB'

}

'Windows Server 2016' {

Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'

}

'Windows Server 2022' {

Update-Dll @commonParams -InputPattern $patterns.Pattern -Replacement 'B8 00 01 00 00 89 81 38 06 00 00 90'

}

'Unsupported OS' {

Write-Host 'Unable to get OS Version'

}

转载请注明来源：WBB » 一键修改termsrv让你的Windows支持多客户端远程，支持24H2

Hiwbb.com

一键修改termsrv让你的Windows支持多客户端远程，支持24H2

第一步，修改组策略

第二步，修改termsrv.dll

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