Hi Kevin,
1) What is "the subject error message"?
2) Check if your URL to the Apache DLL is correct and has proper casing. Apache might be case-sensitive and your ScriptAlias in the Apache setup is in small case ("/isapi-bin/"), but the URL you are using in ClientMod.FileName is all in uppercase ("/ISAPI-BIN/").
3) Adding a simple RtcDataProvider to your ISAPI which will return a simple HTML page to let you know that your ISAPI is properly installed will make it easier for you to test if your URL is correct and your ISAPI is accessible - by using any Web Browser.
4) Does your example need to access files? Check your file and database paths in your ISAPI project and do NOT use relative paths because they will not work the same from a DLL and with EXE. Always use absolute paths. The global variable AppFileName will point to the EXE or the DLL of your application, so you can use it to construct an absolute path from a path relative to your EXE/DLL location.
5) I can not offer tutoring for using the RTC SDK (especially while on a vacation), but you can try to ask for help on Borland Newsgroups, or post a Bid Request on
http://www.RentACoder.com to see if you can find a developer experienced in the RTC SDK to help you out on your project.
Best Regards,
Danijel Tkalcec