Why won my Word 8.0 .RTF files compile with hcrtf (WinHelp 4.0)?
Microsoft changed RTF again with the release of Word 8.0 (Word 97), which made it incompatible with the help compiler. You need to get version 4.02 or 4.03 of the compiler. Both are available for free. 4.02 has some bugs that were fixed in 4.02; 4.03 has some new bugs in Help Workshop, but nothing that affects compiling.