Permissions on prims are surprisingly complex, with many unhappy surprises.
They are not well designed.

You have probably run into the problem that permissions have a sort of low-water mark on them, in that, in addition to what you expect, they are also tracking the LOWEST privileges you have EVER had for that object. At least in Second Life, once you have less than ALL privileges, you can NEVER get them back again.

Example: If I create an object, set it to TRANSFER, NO MODIFY, NO COPY, and give it to another avatar, and then the other avatar gives it right back to me, those are the HIGHEST privileges I can get back. EVEN THOUGH I am listed as the CREATOR, and the current OWNER, I no longer have modify or copy rights. I cannot EVER have modify or copy rights again. They are lost forever.

Simple web page which agrees with that assessment: (See the paragraph "Getting permissions back".)
http://community.secondlife.com/t5/English-Knowledge-Base/Object-permissions/ta-p/700129

It's actually MORE complex than that, and depends on WHAT kind of object you are talking about ( a prim,
a notecard, a script, etc.)

Here's a much more detailed description of the visible and almost-hidden privileges on objects:
http://knol.google.com/k/understanding-rights-permissions-in-sl#

Sad, but true. Apparently some or all of this legacy madness has been carried over into OpenSim.

Wade












On 3/2/12 2:19 AM, Han Xu wrote:
Hello,

I created a prim in my SL Viewer and wrote script for the prim. Then I took copy and deleted the prim in the virtual world. However, later when I draged the prim from Inventory to the Virtual World, I found out that I lost permission on the prims. I was not able to view the script at all ;-(

I don't remember what I did to the prim. Did I miss anything?

Cheers,
Han


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