Mac OS 8.1 Extensions Aren’t Corrupt

In a Tech Info Library article, Apple has acknowledged that the Mac OS 8.1 Update installs some system extensions that may appear to be corrupted or damaged when scanned by certain utility software. Apple stresses that the extensions are functional as is. The Open Tpt AppleTalk Library, Open Tpt Internet Library, Open Transport Library, OpenTptAppleTalkLib, OpenTptInternetLib, and OpenTransportLib extensions, along with the AppleTalk and TCP/IP control panels (all part of Open Transport 1.3) will appear to have about 11 bytes of extra space allocated to their resource forks. Although some third-party utility software will flag the files as possibly damaged, they aren’t; don’t let the utility "fix" them.