What is the ruling on dealing with a winery by selling standard software programs to it, and providing training or maintenance related to them? And what is the ruling on working for a company that deals with such clients, and the ruling on the wages received from it?

It is not permissible for your company to deal with a winery by selling software that facilitates its management, because that constitutes cooperation in sin and aggression, and because whatever leads to the forbidden is itself forbidden. As for your work in the company and your salary, they are permissible, provided that you do not directly deal with alcohol companies or any company that engages in forbidden activities. You must advise those in charge of the company not to deal with forbidden things. If the company forces you to deal with the winery, you must refuse, even if it leads to leaving the job, provided you are not compelled to stay.