Merge pull request #28 from Romanitho/Mods

Mods feature in readme

README.md

@@ -5,15 +5,15 @@ Powershell scripts to install Winget Packages with SCCM/Intune (or similar) or e
 ### SCCM
 - Create an application and put the "winget-install.ps1" script as sources
 - For install command, put this command line:
->powershell.exe -ExecutionPolicy bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++
+> powershell.exe -ExecutionPolicy bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++
 
 ![image](https://user-images.githubusercontent.com/96626929/152222570-da527307-ecc9-4fc2-b83e-7891ffae36ee.png)
 
 ### Intune
 - Create Intunewin with the "winget-install.ps1" script
 - Create a Win32 application in Intune
 - Put this command line as Install Cmd
->powershell.exe -ExecutionPolicy Bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++
+> powershell.exe -ExecutionPolicy Bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++
 
 ### Use Winget native parameters
 You can add custom parameter in your `AppIDs` argument. Don't forget to escape the quote:  
@@ -27,21 +27,33 @@ Details: https://github.com/Romanitho/Winget-Install/discussions/20
 ## Detection method
 - Use the "winget-detect.ps1" with SCCM or Intune as detection method.
 - Replace "$AppToDetect" value by your App ID
->$AppToDetect = "Notepad++.Notepad++"
+> $AppToDetect = "Notepad++.Notepad++"
 
 ## Updates
 https://github.com/Romanitho/Winget-autoupdate
 
 ## Uninstall
 - To uninstall an app, you can use:
->powershell.exe -ExecutionPolicy bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++ -Uninstall
+> powershell.exe -ExecutionPolicy bypass -File winget-install.ps1 -AppIDs Notepad++.Notepad++ -Uninstall
 
 but most of the time, winget does not manage silent uninstall correcty.
 - I would suggest to use the original application uninstaller method, something like this:
->‪C:\Program Files\Notepad++\uninstall.exe /S
+> C:\Program Files\Notepad++\uninstall.exe /S
 
-## Custom
-See Mods folder
+## Custom (Mods)
+
+The Mod feature allows you to run an additional script when installing or uninstalling an app.
+Just put the script with the App ID followed by the "-install-once", "-install" or "-uninstall" suffix to be considered.  
+`AppID-install-once.ps1`, `AppID-install.ps1` or `AppID-uninstall.ps1`
+and put this in the Mods directory (`AppID-install-once.ps1` overrides `AppID-install.ps1`)
+> Example:  
+> If you want to run a script just after uninstalling FileZilla, call your script like this:
+> `TimKosse.FileZilla.Client-uninstall.ps1`
+
+In the case of FileZilla it spawns a process "Un_A.exe" (NullSoft) as a graphical uninstallation and this we will have to wait for completion of before moving on to checking if the uninstallation suceeded or not.
+
+If your using WAU (Winget-AutoUpdate) `AppID-install.ps1` and `AppID-upgrade.ps1` gets copied to the WAU mods directory and runs when upgrading apps.
+They are deleted on an uninstall.
 
 ## Other ideas and approaches
 https://github.com/o-l-a-v/winget-intune-win32