https://bugs.winehq.org/show_bug.cgi?id=56209
--- Comment #3 from Alex Henrie alexhenrie24@gmail.com --- No, I was wrong, whether or not arbitrary lines that start with @ are accepted depends very much on what section they are in. Here's what I got after some more testing:
At the beginning of the file: Forbidden In the [DefaultInstall] section: Permitted In the [SourceDisksNames] section: Permitted In the [SourceDisksFiles] section: Permitted In a CopyFiles section: Forbidden In a DelFiles section: Permitted In a DelDirs section: Permitted In a RenFiles section: Forbidden In a RunPreSetupCommands section: Forbidden In a RunPostSetupCommands section: Forbidden In a PerUserInstall section: Permitted In a RegisterOCXSection: Permitted