APPCRASH (should be the abbreviation of Application Crash, which means application crash) is a unique failure of Vista (win 7 basically uses the same kernel as it). Many problems that lead to APPCRASH errors, such as loading errors of dll, incompatibility of software, and increase or loss of files, will lead to APPCRASH. Different errors should be solved in different ways. APPCRASH is mostly caused by plug-ins. Common solutions: 1. Check plug-ins. 2. Uninstall the recently installed program. 3. Use "Run as Administrator (right click)" during installation and operation. 4. Uninstall the game, and then download and install again.