Melt butter in a large saucepan over low heat. Stir in flour all at once, and cook until bubbly. Stir in Old Bay seasoning and Worcestershire sauce. Gradually stir in chicken broth, wine, and half-and-half.
Prepare gravy according to package directions, and stir into soup. Thin with more half-and-half if necessary. Simmer 10 minutes, stirring occasionally.
Stir in crabmeat, and season with hot sauce, salt, and pepper. Simmer 2 minutes, or until heated through.
