May 27 2020 12:41 PM
steps to duplicate problem:
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a) Install Notepad++ in a sessionhost with default prompts (i.e Path: c:\Program Files\Notepad++)
b) Create a RemoteApp application group
c) Add Application
d) Either use Start Menu or File Path and select Notepad++ path for executable and/or icons
e) Deployment will fail
Workaround
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a) Install NotepadPlusPlus to c:\Program Files\NotepadPlusPlus
b) Modify the executable name from Notepad++.exe to NotepadPlusPlus.exe
c) Create a RemoteApp application group
d) Add Application
e) Use file Path and use C:\Program Files\NotepadPlusPlus\NotepadPlusPlus.exe for app path and icon
f) Use Notepad++ as display name
g) Deployment succeeds
Putting the path for executable/icons in quotes does not help
Jun 02 2020 12:45 PM
Solution@MarkF26 this limitation (+ and other special characters in the path) has been there since WVD classic (GA release). I will follow up to see where it is documented and how we can make it more visible. We will re-evaluate if we need to add a new feature to handle such path. Please feel free to add/upvote here https://windowsvirtualdesktop.uservoice.com/forums/921118-general.