The classic ASP error "cdo.message.1 error 80040220 The "SendUsing" configuration value is invalid" is an error message indicating your ASP script (website) can't send its email out, or the IIS SMTP service is configured wrong. Here is how to fix the latter issue.
Inexplicable COM+ error messages, like "The run-time environment has detected an inconsistency in its internal state.". This one can be fixed by increasing the Windows Desktop Heap size in the registry.
IIS 6.0 error "The tracking (workstation) service is not running" after an iisreset and restarting an SSL website. Fix this error by restarting httpfilter service.