MSIX package - Ask the app developer for a new app package. This one isn't signed with a trusted certificate

Anonymous
2021-06-02T11:43:24+00:00

I am new to MSIX packaging tool. Could you please kindly someone assist me on this?

I have converted my application to MSIX using MSIX packaging tool - https://www.microsoft.com/en-gb/p/msix-packaging-tool/9n5lw3jbcxkf?activetab=pivot:overviewtab & installed the MSIX on windows 10 machine. the installation is not working as expected. Getting an error "Ask the app developer for a new app package. This one isn't signed with a trusted certificate"

I have generated self signed certificate (PFX file) for testing using this link - https://medium.com/the-new-control-plane/generating-self-signed-certificates-on-windows-7812a600c2d8 & attached the PFX in MSIX as well however i am facing the same issue.

I have switched the Update & security option to "Developer mode" but no luck.

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  2. CrazyKats 20,330 Reputation points Volunteer Moderator
    2021-06-03T12:44:43+00:00

    Glad you got the issue solved.

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  3. Anonymous
    2021-06-02T15:28:53+00:00

    Thank you CrazyKats.

    I have generated the PFX file using below script,

    $Publisher_CN = "CN=sample.MSIX"

    $Publisher_DisplayName="sample company"

    $password="pxxxxxxxxx"

    $FolderToExportCert="$($env:UserProfile)\Documents"

    $CertName="Sample.MSIX"

    #——————————— Modify lines above only ———————————–

    $pwd=ConvertTo-SecureString -String $password -Force -AsPlainText

    $PfxName = "$($FolderToExportCert)$($CertName).pfx"

    $cert = New-SelfSignedCertificate -Subject $Publisher_CN -FriendlyName $Publisher_DisplayName -KeyAlgorithm RSA -KeyLength 2048 -Provider "Microsoft Enhanced RSA and AES Cryptographic Provider" -KeyExportPolicy Exportable -KeyUsage DigitalSignature -Type CodeSigningCert -CertStoreLocation "Cert:\LocalMachine\Root"

    $cert | Export-PfxCertificate -FilePath $PfxName -Password $pwd -Force

    Remove-item $cert.PsPath

    & imported the certificate in the package. Next, added the certificate in windows 10 trusted location.

    I can able to install the MSIX application on windows 10 machine :).

    Next issue is,

    If any shortcut has an additional parameter, it is not capturing in "First launch task" . For example if application has below parameters in the shortcuts, then i can see only 2 exe (C:\Anaconda3-2020.02\pythonw.exe and C:\Anaconda3-2020.02\python.exe ) under "First launch task" section.

    C:\Anaconda3-2020.02\pythonw.exe C:\Anaconda3-2020.02\cwp.py C:\Anaconda3-2020.02 C:\Anaconda3-2020.02\pythonw.exe C:\Anaconda3-2020.02\Scripts\spyder-script.py

    C:\Anaconda3-2020.02\python.exe C:\Anaconda3-2020.02\cwp.py C:\Anaconda3-2020.02 C:\Anaconda3-2020.02\python.exe C:\Anaconda3-2020.02\Scripts\spyder-script.py --reset

    C:\Anaconda3-2020.02\python.exe C:\Anaconda3-2020.02\cwp.py C:\Anaconda3-2020.02 C:\Anaconda3-2020.02\python.exe C:\Anaconda3-2020.02\Scripts\jupyter-notebook-script.py "%USERPROFILE%/"

    %windir%\System32\cmd.exe "/K" C:\Anaconda3-2020.02\Scripts\activate.bat C:\Anaconda3-2020.02

    %windir%\System32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy ByPass -NoExit -Command "& 'C:\Anaconda3-2020.02\shell\condabin\conda-hook.ps1' ; conda activate 'C:\Anaconda3-2020.02' "

    C:\Anaconda3-2020.02\pythonw.exe C:\Anaconda3-2020.02\cwp.py C:\Anaconda3-2020.02 C:\Anaconda3-2020.02\pythonw.exe C:\Anaconda3-2020.02\Scripts\anaconda-navigator-script.py

    Is there any way that i can edit and add the missing parameters in the shortcuts? Also i don't see ARP entry. any help please?

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  4. CrazyKats 20,330 Reputation points Volunteer Moderator
    2021-06-02T13:00:11+00:00

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