gliderpilot

I agree with absoblogginlutely.
I run on a windows server using IIS and I have been trying to modify permissions only in the appropriate folders by adding write permission only.
This allowed the new plugin to be written to my folder, however I too was still having failures in [function_unlink] due to not being able to unlink the writetest file.

I had a thought, I’ll allow Full Control to IUSR_computername to folder /wp-content (with replacing permissions to all child objects).

Lo and behold it all works now

I have been having this problem on one of our Blogs too!
Not got to the bottom of it yet.
We keep seeing widgets disappear, we put them back and they seem there, then they disappear again – it’s bizzare!