Powershell Loading Binary Module

Question

I have few powershell script which I am trying to put into module. In the same module I also intend to load a c# dll for token generation. DLL uses System.Management.Automation.

#content of asr.psm1
Import-Module ".\tokengenerator\PowershellTokenGenerator.dll"
Get-ChildItem $psscriptroot\*.ps1 -Recurse | ForEach-Object { . $_.FullName }

The folder tokengenerator includes dll to generate OAuth2.0 token. How can I load powershell module and C# cmdlet under the same module. However, when I am trying to load the module I get the below error.

Import-Module D:\repo\src\aadsr\setup\asr.psm1

Import-Module : The specified module '.\tokengenerator\PowershellTokenGenerator.dll' was not loaded because no valid module file was found in any module directory. At D:\repo\src\aadsr\setup\asr.psm1:1 char:1
+ Import-Module ".\tokengenerator\PowershellTokenGenerator.dll"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ResourceUnavailable: (.\tokengenerato...enGenerator.dll:String) [Import-Module], FileNotFoundException
    + FullyQualifiedErrorId : Modules_ModuleNotFound,Microsoft.PowerShell.Commands.ImportModuleCommand

Is PowershellTokenGenerator.dll a PowerShell module? Import-Module is only for importing PowerShell modules, not any old C# library. Take a look at Add-Type. — boxdog
– boxdog, Commented Sep 7, 2019 at 15:50
Does it load outside of your module? i.e. if you open the console and just use Import-Module directly on the file, does it work? Also, is the DLL compiled for the same OS type as the version of PowerShell you are running (e.g. 64-bit) — boxdog
– boxdog, Commented Sep 7, 2019 at 15:58

mklement0 · Accepted Answer · 2019-09-07 23:31:43Z

4

Use:

Import-Module "$PSScriptRoot\tokengenerator\PowershellTokenGenerator.dll"

to ensure that the DLL is found relative to the script module's (*.psm1) location, reflected in automatic variable $PSScriptRoot.

By contrast, if you use Import-Module ".\...", the DLL is looked for relative to the current location (.), whatever it may be.

edited Sep 7, 2019 at 23:31

answered Sep 7, 2019 at 21:02

mklement0

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