Last Line isn't Executing

Question

I am new to PowerShell, but I am trying to use it to export an App list from windows, edit that App list, and re-import the updated App list. The problem is PowerShell does not want to run the last command. It stops after it has run the command to find and replace the variables. Can anyone advise on a solution?

#
#Variables 
$path = 'C:\AppAssociations.xml'
$mail = '<Association Identifier="mailto" ProgId="AppXydk58wgm44se4b399557yyyj1w7mbmvd" ApplicationName="Mail" />'
$outlook = '<Association Identifier="mailto" ProgId="Outlook.URL.mailto.15" ApplicationName="Outlook" />'
$con = Get-Content $path
#
# Download App Associations xml
Dism /online /Export-DefaultAppAssociations:"$path";
#
# find and replace
$con | % { $_.Replace("$mail", "$outlook") } | Set-Content $path;
#
# Import updated App Associations xml
Dism /online /Import-DefaultAppAssociations:$path;
Get-Date

Answer 1

Hi，

You should export the app list before Get-Content or you will read a file does not exist.

$path = 'C:\AppAssociations.xml'  
$mail = '<Association Identifier="mailto" ProgId="AppXydk58wgm44se4b399557yyyj1w7mbmvd" ApplicationName="Mail" />'  
$outlook = '<Association Identifier="mailto" ProgId="Outlook.URL.mailto.15" ApplicationName="Outlook" />'  
# Download App Associations xml  
Dism /online /Export-DefaultAppAssociations:"$path"  
$con = Get-Content $path  
# find and replace  
$con | % { $_.Replace("$mail", "$outlook") } | Set-Content $path  
# Import updated App Associations xml  
Dism /online /Import-DefaultAppAssociations:$path  
Get-Date  

Best Regards,
Ian Xue

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Answer 2

The C:\AppAssociations.xml exports to C:\
The C:\AppAssociations.xml is edited successfully to make outlook the default
The second Dism does not execute importing the file back into windows.
No error message appears.

If you run the Second Dism by itself it will import properly.
----> Dism /online /Import-DefaultAppAssociations:C:\AppAssociations.xml

Answer 3

What does the error message say? What if you run the last line in CMD and replace $path with "C:\AppAssociations.xml" - does that work?