session problems with php4+winnt+pws4

Calls to session_start and some other functions result into a very long wait followed by an error message "page cannot be displayed". For example the following code does it:
<BLOCKQUOTE><font size="1" face="Verdana,Arial,Helvetica">code:</font><HR><pre><?php
session_register("count");
$count++;
echo $count;
?>[/code]
In php.ini I have the line session.save_path = /tmp and I have created the directory c:tmp. I also created a virtual directory /tmp under the www root directory. In the c:tmp directory I can find session id files with the size of 0 bytes.
I can't figure out what is wrong.

The same seems to work well under Linux+Apache...

I actually had this problem with our IIS server. Check the permissions on your temporary directory and make sure that the world can write to them. I believe this was our problem, if it doesn't seem to be yours, let me know and I'll see if I can find something else that might have caused our problem.

-Justin

It doesn't seem to be the problem...