Whilst you are sure this is clean, links to 'suspect' file should be broken to avoid accidental exposure. e.g. hXXp://www.dzyszla.aplus.pl/download-4.html?verid=99
For obvious reasons there is a limit to file types the last thing a support forum wants is a malware sample (even if you think it clean) attached to the topic as avast would alert in its own forum blocking any assistance that could be given.
For some reason I can't get the VT results page.
Send the sample to
virus (at) avast (dot) com zipped and password protected with the password in email body, a link to this topic might help and false positive in the subject.
Or
Contact avast
http://www.avast.com/contact-form.php?loadStyles - If you are reporting an FP, then you get another input filed open, click Browse button and navigate to the file you wish to submit.
Edit is this the DekoderElektronika32Setup.exe file ?