The answer is rather simple: the program is missing a reference to a library (DLL stands for Dynamic link library), so It cannot compile because you must be using methods from this library in your program. Now, I am guessing you copied this program from somewhere else, perhaps a friend or a website. What you need to do is get this library from the source of the program and register it in your system so it becomes available to your program trhough the references window. CMISAboutPanel is the name of the library you are looking for. The DLL is probably under that name (CMISABoutPanel.DLL) or something like it (MISAbout.dll). Get that file, register it on your system using regsvr32.exe and it should work fine.
Good Luck!