wincom32.sys is a malicious file, which belongs to a parasite known as Peacomm. It's a trojan horse that is mostly used for stealing people's personal information. By the way, it seems that it is filled with rootkit capability that helps it to hide its malicious files deep inside the system. If you found wincom32.sys, you should waste no time and check your PC with reputable security tool.
When wincom32.sys file is installed, it is mostly set to act as a system service or a device driver. It is responsible for implementing main features of the virus, hiding the threat in the system and running a destructive payload. For avoiding the loss of your private information and similar consequences, you are highly advised to scan the system with RegCure Pro and remove wincom32.sys file from it.