Hi WA
Wine doesn't "finish" at 1.100(is that correct, 1.100?). Sounds like it never got going. It is hard for me to offer you an opinion, or anyone else, without more details.
What SG did you start at? Did you add any sulphites or campden in the begining? How big of a batch are we talking about? Please post us your recipe so we can take a look.
It sounds to me like it would be quite possible to make a starter and get it fermenting (again) and let it do its trick until it ferments out, and then put it under airlock.
It sounds like it never started to begin with. All hope may not be lost, so please don't panick. I think it was Allie who was talking about a ginger wine and it sounds good.
For now. Take about 1 cup of the wine and heat it to about 100 degrees/F, sorry, I don't have a metric conversion in froont of me, and I NEED TO! Lots of members in here who use it. Bring it up to about 100F, sprinkle your yeast(what did you use to begin with?) on top and allow it to rehydrate. Keep your starter in a warm place. Every hour or so, add about 1/2 cup of the wine to your starter, let it "grow" for an hour or so, and add another 1/2 cup, and again, allow it to "grow". Keep doing this till you have at least 1 quart of starter and pour it in. No need to stir. It SHOULD go.
As I said, without anymore details it may another problem.
But until someone else chimes in. Get that starter going. As I am sure you realize, you want your must at least 70F before you add your starter,
Don't panick, I think you will probably be allright. I'm sure hoping so anyway.
Got my fingers crossed for you. Get that starter going right away, just in case. Keep us posted.
Troy