The MSiX Packaging Tool (1.2019.226.0) Preview now has the ability to connect to a remote machine, where you can run the conversion.
This is great news, and solves the normal issue with contamination on “non-sanitised” machines.

I have always preferred to do my packaging and re-packaging on Hyper-V Virtual Machines
This gives a total control and clean enviroment, with easy ability to get back to a controlled point of reference, using checkpoints.

Getting started with remote machine conversions? Fear not! It is quite simple to get started.

– PowerShell remoting must be enabled for secure access to the remote machine.
– You must be logged on with administrative privileges on the machine.

To enable PowersShell remoting on the machine, run the following command in an elevated PowerShell prompt: Enable-PSRemoting -Force -SkipNetworkProfileCheck

If network/firewall restrictions are in place, remember to allow inbound traffic on port 1599 (MSiX Packaging Tool default port, it can be changed with the settings tab)

If you are connecting using a non-domain joined machine, you must use a certificate to connect over https.
To enable PowerShell remoting and allowing WinRM over https run the following commands in an elevated PowerShell prompt

Enable-PSRemoting -Force -SkipNetworkProfileCheck

New-NetFirewallRule -Name "Allow WinRM HTTPS" -DisplayName "WinRM HTTPS" -Enabled True -Profile Any -Action Allow -Direction Inbound -LocalPort 5986 -Protocol TCP

To generate a self-signed certificate, configure WinRM secure configuration and export the certificate, you can run this script: (or download: [download id=”863″])

$thumbprint = (New-SelfSignedCertificate -DnsName $env:COMPUTERNAME -CertStoreLocation Cert:\LocalMachine\My -KeyExportPolicy NonExportable).Thumbprint
$command = "winrm create winrm/config/Listener?Address=*+Transport=HTTPS @{Hostname=""$env:computername"";CertificateThumbprint=""$thumbprint""}"
cmd.exe /C $command
Export-Certificate -Cert Cert:\LocalMachine\My\$thumbprint -FilePath <path_to_cer_file>

On your locale Machine, copy the exported certificate and install it into the Trusted Root Store.
It can be imported with the following command: Import-Certificate -FilePath <path> -CertStoreLocation Cert:\LocalMachine\Root