Great or Garbage?

[rosethorn]

My mother-in-law recently moved into a new house. Inside the house the previous owner had left several bottles of wine, which she declined to take with her when she moved. Since my mother-in-law is not fond of wine she passed it all on to us. My question for the forum is whether or not any of these are still good. I believe they were stored upright and at room temperature. The list of them follows:
Soave made by Bolla in 1990
Merlot made by Clos DuBois in 1999
Johannisberg Riesling made by The Houge Cellars in 1990
Reserve Chardonnay made by Ernest and Julio Gallo in 1990 and
White Zinfandel made by Berenger in 1991
I see that there are a lot of posts about the age of wine and appreciate any advice we get. Thank you and merry toasting!