Topic: How to trace problems with third party modules

[panam@gmx.net]

I am running Apache (win32) and Tomcat (x64) on a VPS (Windows 2003, x64) as services with no problems so far. Now I tried to plug mod_wsgi (win32; for running Phyton) and mod_jk (win32, to pass through certain requests to Tomcat) into Apache. Whenever pages that either of the modules should serve are accessed, a "Service Unavailable" is returned. However, both modules seem to work (at least, there are no errors in error.log indicating the contrary). The log Level in httpd.conf is set to info. Running Apache via command line also does not show any errors.
Although it could be that both are somehow misconfigured, I presume that the problem is related to the Apache configuration directly since there are no error messages in the logs and both third party modules show the same behavior.
One additional thing that might possibly be relevant: Connecting remotely to the VPS and trying to access the pages that should be served by the modules from there (using localhost) returns a 404 generated by an IIS instance instead of the Apache message "Service Unavailable" (probably somehow due to the shared hosting). This also happens with invalid addresses.
Do you have suggestions how I can further track down possible errors or have you experienced the same?

Thanks for help
panam

[panam@gmx.net]

OK, the problem was IIS running in the background. Switched to a Linux system and IIS is gone...