Hi,
In our workstation environments we cannot run the install-modules, as administrator accounts must not be able to connect to internet. So I did a manual download for .nupkg. Then I follow the instructions on: Installing PowerShell modules from a NuGet package
When I'm trying to import the module I get the following:
PS C:\> Import-Module microsoftteams
Import-Module : Could not load file or assembly 'file:///C:\Program Files\WindowsPowerShell\Modules\microsoftteams\net472\Microsoft.Teams.PowerShell.Auth
.dll' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)
At line:1 char:1
+ Import-Module microsoftteams
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Import-Module], FileLoadException
+ FullyQualifiedErrorId : System.IO.FileLoadException,Microsoft.PowerShell.Commands.ImportModuleCommand
Many of related instructions for the error code ask to remove the block from the file. But in our workstation, we do not store the information:
C:\>reg query HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments
SaveZoneInformation REG_DWORD 0x2
HideZoneInfoOnProperties REG_DWORD 0x1
Even so, I ran the following to unblock all of the files:
PS C:\> Get-childItem -Path "C:\Program Files\WindowsPowerShell\Modules\microsoftteams\" -Recurse | Unblock-File -Verbose
Is there any other reasons why this might come?
I have tested to run this with admin account and regular account.
@officedocsbot assign @yogkumgit
Hello @Petri-X
While I setup my environment to test this... quick question, did it run successfully after you unblocked all the files?
Thanks for the info
Hello @Petri-X
Finally tested this.
First, I reproduced the error you shared, then, I tried first unblocking the .nupkg file BEFORE renaming it to .zip to extract the contents, and then tried to use it, it imported the microsoftteams module without error.

@get-itips Thank you very much for the contribution and updating the documentation with PR. @Petri-X Hope this update is helpful for you. Thanks for taking out some time to open the issue. Appreciate and encourage you to do the same in future also.
@get-itips Hero !!
That really did the trick. And answer for your earlier question, when I did a unblock for all files, that did not work either then.
Big thanks !! _o/
@Petri-X Glad to hear!
@yogkumgit please close this thread again.
Most helpful comment
@Petri-X Glad to hear!
@yogkumgit please close this thread again.