INNO TROUBLESHOOT - Questions Here

[Cesar82]

Can anyone tell me if it is necessary to call these IsDone functions below if I do not use the ISFindFiles e and ISPrecompExtract and ISSRepExtract functions.

      if not SrepInit(ExpandConstant('{app}\'), 512, 0) then
        Break;

      if not PrecompInit(ExpandConstant('{app}\'), 128, 0) then
        Break;

      if not FileSearchInit(True) then
        Break;

IsDone's help is all in Russian and it would help a lot if someone who understands the language could share this information.
I will only use IsArcExtract, IsRarExtract, IS7ZipExtract and ISxDeltaExtract.