private: void __thiscall FileSystem::DiskDevice::CopyFrom(class FileSystem::DiskDevice const &)

Mangled name

?CopyFrom@DiskDevice@FileSystem@@AAEXABV12@@Z

Exported by

size	filename	version
927064	QBXMLRP2.dll	6.0 R4000 + 8
546136	QBXMLRP.dll	6.0 R4000 + 8