This error usually signifies that your system failed to unpack a compressed archive. Common triggers include: Insufficient RAM:
: Sometimes, simply reinstalling the application that’s causing the error can resolve the issue, as it may provide a fresh copy of the isdone.dll file. isdone.dll download windows 7 64 bit
If you are trying to install a large game or software suite on Windows 7 and are met with the error message or "Unarc.dll returned an error code -1/5/6/7," you are not alone. This is a notoriously common issue for users running older operating systems or attempting to install repacked games. Isdone
If this file is missing, corrupted, or if your system lacks the resources to run it, the installation will fail. Backup data, then perform an in-place upgrade/repair using