OK, it did. (strange, though...)
So heres my continuation:
The reason I'm using IIS is that it comes free with my local machine, and that I've used it before and have a relatively good understanding of how it works (for a web-developer that is...). It's for a testing/developing setup only. I don't want to learn Apache if it's not absolutely nessecary.
There seems to have been a switch from "php5isapi.dll" to "php-cgi.exe" in the world of php/iis but I'm not 100% sure, and I would like to understand more what all this means, I have only a vague understanding of these technicalities - I'm a simple code-writer...
And, as I said, there's one setting in IIS to determine what interpreter to use and another for "ASAPI filter", which I don't know the meaning of.
Is this the wrong forum for an IIS-user alltogether? Are all phpbuilder-folks into Apache only?
(Anyway, I will check the stuff "NogDog" pointed to.)
Thanks a lot.
Any further help appreciated