File list (Check if you may need any files):
Visual_C_SHARP_2008_HOW_TO_PROGARM_C05
......................................\exercise05_06
......................................\.............\Calculate
......................................\.............\.........\Calculate
......................................\.............\.........\.........\Calculate.cs
......................................\.............\.........\.........\Calculate.csproj
......................................\.............\.........\.........\Calculate.csproj.user
......................................\.............\.........\.........\Properties
......................................\.............\.........\.........\..........\AssemblyInfo.cs
......................................\.............\.........\Calculate.sln
......................................\exercise05_16
......................................\.............\Mystery
......................................\.............\.......\Mystery
......................................\.............\.......\.......\Mystery.cs
......................................\.............\.......\.......\Mystery.csproj
......................................\.............\.......\.......\Mystery.csproj.user
......................................\.............\.......\.......\Properties
......................................\.............\.......\.......\..........\AssemblyInfo.cs
......................................\.............\.......\Mystery.sln
......................................\exercise05_25
......................................\.............\Mystery2
......................................\.............\........\Mystery2
......................................\.............\........\........\Mystery2.cs
......................................\.............\........\........\Mystery2.csproj
......................................\.............\........\........\Mystery2.csproj.user
......................................\.............\........\........\Properties
......................................\.............\........\........\..........\AssemblyInfo.cs
......................................\.............\........\Mystery2.sln
......................................\exercise05_26
......................................\.............\Mystery3
......................................\.............\........\Mystery3
......................................\.............\........\........\Mystery3.cs
......................................\.............\........\........\Mystery3.csproj
......................................\.............\........\........\Mystery3.csproj.user
......................................\.............\........\........\Properties
......................................\.............\........\........\..........\AssemblyInfo.cs
......................................\.............\........\Mystery3.sln
......................................\fig05_06_07
......................................\...........\GradeBook
......................................\...........\.........\GradeBook
......................................\...........\.........\.........\GradeBook.cs
......................................\...........\.........\.........\GradeBook.csproj
......................................\...........\.........\.........\GradeBook.csproj.user
......................................\...........\.........\.........\GradeBookTest.cs
......................................\...........\.........\.........\Properties
......................................\...........\.........\.........\..........\AssemblyInfo.cs
......................................\...........\.........\GradeBook.sln
......................................\...........\.........\GradeBook.suo
......................................\fig05_09_10
......................................\...........\GradeBook
......................................\...........\.........\GradeBook
......................................\...........\.........\.........\GradeBook.cs
......................................\...........\.........\.........\GradeBook.csproj
........................