Microsoft made a minority investment on Monday in Unix/Linux management vendor Vintela on Monday. Neither Microsoft nor Lindon, City, Utah-based Vintela would comment on the size of the investment. But sources said the amount was under $10 million. Vintela has acted a key participant in Microsoft’s Unix/Linux interoperability strategy. Nonetheless, Vintela is an unlikely Microsoft partner. Update: I hope to interview someone from Vintela this week, and ask them about their relationship with SCO (other than having the same investor). If you have any other burning questions, please suggest them in the comments.