Why won my Word 8.0 .RTF files compile with any WinHelp 3.1 Compiler?
There are two possible reasons for this problem. First, because Microsoft changed the RTF export again, the standard Word 8.0 RTF is not compatible with earlier WinHelp compilers. Second, even if you are using an export filter specifically for WinHelp, there are new features in WinHelp that these compilers can’t handle, such as floating text boxes.