Please see the following for an example for the BESClient service (including steps and comments along the way to try to ‘show work’ 
):
// sample string with a double quote (percent-code 22)
Q: "abc%22123"
A: abc"123
I: singular string
// checking if the string contains a double quote (percent-code 22)
Q: “abc%22123” contains "%22"
A: True
I: singular boolean
// returning the value for a specific imagepath in the registry:
Q: value “ImagePath” of key “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\BESClient” of registry
A: “C:\Program Files (x86)\BigFix Enterprise\BES Client\BESClient.exe”%00
I: singular registry key value
// casting the registry value to a string
Q: value “ImagePath” of key “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\BESClient” of registry as string
A: “C:\Program Files (x86)\BigFix Enterprise\BES Client\BESClient.exe”%00
I: singular string
// checking if the imagepath contains a double quote
Q: value “ImagePath” of key “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\BESClient” of registry as string contains "%22"
A: True
I: singular boolean
