With the release of Microsoft's Vista operating system, most help files, including those in TossEm! and Extra!32 cannot be opened. Until TossEm! and Extra!32 can be modified to call the new CHM file format, you can still view your existing help files by downloading and installing the old Windows help system from http://www.microsoft.com/fwlink/?LinkID=82148 . After this program is installed, clicking on any help button in either TossEm! or Extra!32 (or any other program that uses the old Winhelp help system) will produce the help screens.