Hi! My problem is this: I want to know the serial number of my hard disk. In Windows I use this API: BOOL GetVolumeInformation( LPCTSTR lpRootPathName, // root directory LPTSTR lpVolumeNameBuffer, // volume name buffer DWORD nVolumeNameSize, // length of name buffer LPDWORD lpVolumeSerialNumber, // volume serial number <-- This LPDWORD lpMaximumComponentLength, // maximum file name length LPDWORD lpFileSystemFlags, // file system options LPTSTR lpFileSystemNameBuffer, // file system name buffer DWORD nFileSystemNameSize // length of file system name buffer ); I dont' know the same function in Mac with FB3. Please, may you help me? Thank you for your attention. Manlio F. Tartara