Thanks Maurizio.
I've included your "openacs" virtual server (both /packages/ and database dump) in my CygWin installation and it works without any apparent errors. So I can say that I've reproduced your installation now.
Still, running standard ]project-open[ causes the reported issues and lead to nsd.exec consuming 99% of CPU time. So I assume ]po[ uses some additional NaviServer functionality that includes an error.
However, you said that you had ]po[ packages installed on top of your installer? All of them or only the once we recently published as "installable" on top of OpenACS?
I'll probably have to go step-by-step from your "openacs" to our "projop" installation in order to determine the location of the error...
Still, it would be great if you could fix this [ns_info threads] issue together with Gustaf, as it will definitely come up again in different places...
Cheers,
Frank