Re: [VNL] Vanillacoin 0.3.1 | Hybrid TCP/UDP | ECDHE | O(1) | DarkPP/MinerPP/CoinPP
The wallet vanillacoin.exe program was flag by my anti-virus as an infected file. 
That's probably a false flag or an error on your part, official download link doesn't contain malware and it's open source.