Spider Solitaire is described as 'Test your skills and luck at Spider Solitaire, a free online version of the classic card game. This classic leisure game provides endless hours of addictive fun' and is an website. There are more than 25 alternatives to Spider Solitaire, not only websites but also apps for a variety of platforms, including Android, Android Tablet, Linux and iPad apps. The best Spider Solitaire alternative is KPatience, which is both free and Open Source. Other great sites and apps similar to Spider Solitaire are PySolFC, Online Solitaire, World of Solitaire and Little Solitaire.
This is not a Windows app.