I setup ruby1.6.7, eruby0.9.8 and apache1.3 under Windows2k,
I already set path to ruby bin path. And I can run eruby well.
but I set apache httpd.conf using 
AddType application/x-httpd-eruby .rhtml
Action application/x-httpd-eruby "/cgi-bin/eruby.exe"
copied eruby.exe to apache/cgi-bin.
When I call a file in IE, for instances http://162.105.69.206/1.rhtml
I get error.And In apache Error.log, it is 
[Sun Nov 03 23:11:30 2002] [error] [client 162.105.69.206] Premature
end of script headers: eruby.exe
[Sun Nov 03 23:11:30 2002] [error] [client 162.105.69.206]
C:\Apache2\cgi-bin\eruby.exe: missing required file to process


what can I do?