Hi Imar - nice to see you again. As always your time is like its weight in gold, all fixed!!!!
After looking at your very informative quick doc, the IUSR was the IIS account being used. As you suggest above making this user a part of the Administrator group and rebooting fixed the issue. Note - I didnt need to make the IWAM part of the group also.
This problem was very strange, had no logic to it and it shouldnt be neccessary to make this user part of the admin group given the other permission alterations I carried out. mmmm very weird indeed.
To answer your other question - yes full permissions were given to both of the Temp dir locations.
Have a fine day Imar :o) For others having this issue make sure you read:
http://p2p.wrox.com/topic.asp?TOPIC_ID=72331
To get a full understanding of what steps were taken to fix things. Thanks also to Old Pendant and his time and effort in the above post.
Wind is your friend
Matt
www.elitemarquees.com.au