Sets the DefaultDownloadFolderPath property. The default download folder
path is persisted in the user data folder across sessions. The value
should be an absolute path to a folder that the user and application can
write to. Returns E_INVALIDARG if the value is invalid, and the default
download folder path is not changed. Otherwise the path is changed
immediately. If the directory does not yet exist, it is created at the
time of the next download. If the host application does not have
permission to create the directory, then the user is prompted to provide a
new path through the Save As dialog. The user can override the default
download folder path for a given download by choosing a different path in
the Save As dialog.
Sets the DefaultDownloadFolderPath property. The default download folder path is persisted in the user data folder across sessions. The value should be an absolute path to a folder that the user and application can write to. Returns E_INVALIDARG if the value is invalid, and the default download folder path is not changed. Otherwise the path is changed immediately. If the directory does not yet exist, it is created at the time of the next download. If the host application does not have permission to create the directory, then the user is prompted to provide a new path through the Save As dialog. The user can override the default download folder path for a given download by choosing a different path in the Save As dialog.