The free tool I use to make a backup of a game I have installed is NirSoft's "Inquiry Reset", which will recreate game databases and other files, and after I have backed them up, I will uninstall the game and then reinstall it. No rewinding or other steps are necessary, and it will even go through games which I had previously installed and deleted without a hitch.
Basically the "Pixel shader 1.1" error can have many causes and doesn't need to be a problem with your GPU or drivers. Often it occurs when there's a syntax error in one of the shader files (or in the ShaderSettings files), so you might want to try the initial downloaded files prior to apply any changes.
Each shader is known as a "Shader" and there are classes of shaders based on their use. A *Vertex Shader* is used to process a number of vertices, usually as input to a *Vertex Shader*. Some games only use vertex shaders; others use vertex and fragment shaders. *Fragment Shaders* or *Pixel Shaders* are used to perform shading. There are also Description, Pixel Tile State and other shaders but these are not relevant to us.
To see some more of the output from items in the Error dialog box, you can right-click the Error Control button and select Show Error Output from the context menu. The error message window will open, showing all of the information that Stack Overflow can extract from VS 2008.
Not all of these NEBs are abortive or monospecific, however. An interesting example is the extraordinary and little-known large mammalTrogonocephalus trogon baring its lower jaw to show the massive (though non-functional) rostrum, probably the only amphibian to do so Bonobo The North Borders Zip  Any zoologist or will automatically know this. It is a deep water creature, "a living fossil"?. No one is quite sure where it came from. But at one time it was only found in the Congo River, and it was there that Oliver Reck first found it in 1851.
 It is less well known than the others, because it is not found in the wild -- it lives in old harbors and has tended to disappear from view. It is the only crocodilian in the World listed as an endangered species, as it is found in only 2 old harbors and the wild populations have severely declined. d2c66b5586