unarc.dll/ISDone.dll
 

hello all now im facing this problem so can anyone plz help me in it ?

This - 1 is a generic error, it can be down to:

- missing libraries needed by compressors (if the whole compressor was missing, the error would be -2)

- file path of installation too long or contains foreign non English characters (A-Z are safe characters).

- the archive is indeed corrupt, in which case you should inspect your compressor, make sure everything running correctly.

There's no one fit fix for this.