How to fix unarc.dll or Isdone.dll errors?

Asked By 20 points N/A Posted on -
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Whenever I’m downloading any archive from the Internet and trying to unpack it, or install it, for example a game or so, with the help of installation program I am facing Inno setup errors like the “unarc.dll” and “Isdone.dll”. I want to know the reason and solution to it. Please help.

ISDONE.dll

An error occurred when unpacking!

Unarc.dll returned an error code: -1

ERROR: archive data corrupted (decompression fails).

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Answered By 0 points N/A #98634

How to fix unarc.dll or Isdone.dll errors?

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Unarc.dll or Isdone.dll errors are quite common amongst users. They may occur when your archive data is corrupt or due to installation of Resident Evil, Assassin’s Creed, Crysis Warhead and such games.

Firstly, try disabling your antivirus and run the program again. If it works, you may go to the bottom of the page to use the share buttons for enabling again. If that too doesn’t work, then maybe the path to the file that won’t run has non-latin characters in it. You can try moving your file to another location/drive. These steps may seem strange, but you should try them if you really want to fix the error. Move the file from your erroneous computer to another PC without downloading it from the same internet source on the Internet because, your PC might be having RAM issues.

If the other PC still shows the same error try unpacking or installing it. If none of the troubleshooting method worked, then you should look into the lines of code in the source of the file. If your RAM happens to be the cause of the unarc.dll error, then you may remove your memory modules one by one and after reinstalling, try testing the program again.

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