Get-AssemblyReverseReferences.ps1

[CmdletBinding()]
param(
    [string]$AssemblyName,
    [string]$Path
)

function Get-AssemblyReverseReferences {
    param(
        [string]$Name,
        [string]$Path = '.'
    )

    Get-Assemblies $Path |
        ForEach-Object {
            $reference = $_.References | Where-Object { $_.Name -eq $Name } | Select-Object -First 1
            if ($reference) {
                [PSCustomObject]@{ 
                    AssemblyFile = $_.AssemblyFile
                    Reference = $reference
                }
            }
        }
}

function Get-Assemblies {
    param($Path)

    Get-ChildItem -Path $Path -Recurse -Filter '*.dll' | ForEach-Object {
        try {
            $asm = Get-Assembly $_.FullName
            @{
                AssemblyFile = $_
                References = $asm.GetReferencedAssemblies() | Sort-Object -Property Name
            }
        }
        catch [BadImageFormatException] {
        }
        catch [IO.FileLoadException] {
        }
        catch [Security.SecurityException] {
        }
    }
}

function Get-Assembly {
    [OutputType([System.Reflection.Assembly])]
    param($Path)

    $fileName = Resolve-Path $Path
    [System.Reflection.Assembly]::LoadFile($fileName)
}

Get-AssemblyReverseReferences -Name $AssemblyName -Path $Path |
    ForEach-Object { [PSCustomObject]@{
        Dll = (Resolve-Path -Relative $_.AssemblyFile.FullName)
        Reference = $_.Reference
    }} |
    Format-Table -AutoSize