RESOLUTION
To make Sun ASP available for every new domain you need to login as root via ssh into the server and create a
new file, for ex. addvhostperm.sh, in /usr/local/psa/bin/ folder with your
favorite text editor such as vi or nano.
Add the following lines there:
#!/bin/bash
cat > /home/httpd/vhosts/$1/conf/vhost.conf <<EOF
ASPUser $2
ASPGroup psacln
EOF
Save the file and exit the text editor. You may need to change the permissions on
this file to run it (make sure root has execute permissions) with:
# chmod +x /usr/local/psa/bin/addvhostperm.sh
Now, login to the plesk admin console and go to the server section. Locate
Event Manager and click on Add New Event.
Select "Physical hosting created" from the drop down menu, "normal" in the
priority list and "root" as the user and paste the following line into the
Command text box:
/usr/local/psa/bin/addvhostperm.sh <new_domain_name> <new_system_user>
Click OK to save the event.
Done - this event will create a file called vhost.conf in the conf directory
of all the domains you setup with physical hosting under the Plesk control
Panel allowing each domain permissions to access the ASP server.