If you are the one calling the delegate, you have an extra thing to worry about.
Fiddling a knob that isn't connected to anything.
How failures in the wild get categorized by analysis.
std::string throw an exception?
It depends on how you shrink it.
Trying to contain the damage.
Call for a translator.
SHSetKnownFolderPath to change the location of FOLDERID_LocalAppData?
A acknowledgement of the reality that it not only doesn't work, but leaves the user profile corrupted.
You can just phone it in.
Perhaps it's behind a sign that says Beware of the Leopard.
Too much information leads to trouble.