File is probably clean and detections are a result of sometimes being bundled with adware. As previously explained it was common of the era. These are very likely false positives.
I have uploaded the file to VirusTotal where it is scanned by multiple engines and here are the results:
https://www.virustotal.com/en/file/00e99a92e88cc487ccaa2dbee410b23cc6539a3e9bb7d5eb415334d9fa55b783/analysis/1455798371/
Some share a common thread of indicating possible bundled adware; this is usually from engines which are particularly cautious and more likely to throw a false positive (Avira for example) while others are one-off engines.
None of the positive results show anything outright alarming or malicious, but seem to be mundane or generic warnings of PUP/A (potentially unwanted program/application).
While the vast majority of well-known engines indicate it is safe (Kaspersky, Sophos, Symantec, Microsoft, Avast, AVG, BitDefender, TrendMicro, DrWeb etc).
Personally am inclined to believe it is safe, and this is just a false positive by over-zealous scanning engines.