Action script relevance not returning correct value

Content Authoring
1

I’m trying to retrieve the registry key for specific application from the uninstall key. It works fine from QnA debugger but running it in Action script it fails.

Example below - working

parameter “_Result3” = “{name of key whose (value “DisplayName” of it as string as lowercase starts with “citrix workspace 2409”) of key “HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall” of native registry as string}”

Command succeeded parameter “_Result3” = “CitrixOnlinePluginPackWeb”

Example below - not working

parameter “_Result2” = “{name of key whose (value “DisplayName” of it as string as lowercase starts with “windows iot”) of key “HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall” of native registry as string}”

Command failed (Relevance substitution failed) parameter “_Result2” = “{name of key whose (value “DisplayName” of it as string as lowercase starts with “windows iot”) of key “HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall” of native registry as string}”

If I run this from the QnA result is fine

Q: name of key whose (value “DisplayName” of it as string as lowercase starts with “windows iot”) of key “HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall” of native registry
A: {084094EF-6AC9-480A-7CC1-04199047BBDD}

I guess some escape/substitution needs to happen so any idea/suggestion Thx!

2

There could be a few reasons why the relevance fails during action script execution:

  • The DisplayName is incorrect or doesn’t match exactly.
  • The DisplayName matches multiple entries, which causes ambiguity.
  • The DisplayName doesn’t exist at all in the registry.

While the QnA debugger is more forgiving and can handle empty or multiple results, action script requires the relevance to return a single valid result. If it doesn’t, the parameter substitution will fail.

Safer approach:

if {exists key whose (exists value "DisplayName" of it AND value "DisplayName" of it as string as lowercase = "windows iot" as lowercase) of key "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" of native registry}
parameter "_Result2" = "{name of key whose (value "DisplayName" of it as string as lowercase = "windows iot 123" as lowercase) of key "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" of native registry as string}"
endif

Fallback approach using | "None"

parameter "_Result2" = "{name of key whose (value "DisplayName" of it as string as lowercase = "windows iot 123" as lowercase) of key "HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" of native registry as string | "None"}"

3

Probably getting multiple results. Try this:

names of keys whose (value "DisplayName" of it as string as lowercase starts with "windows iot") of keys "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" of native registry as string