I have a new error message when i start Utorrent . SBIE2327 ERROR IN COM SERVER 17/5.
I just have Firefox and utorrent in this Sandbox and the error has just started

Open Sandboxie's Resource Access Monitor at some point before the error message appears.
File > Resource Access Monitor
Leave the Resource Access Monitor window open, and after the error message appears, copy the text from its window and paste it in a message, here.
Maybe something will show up that will help to find the cause of the message.

I only see 2 lines with possibilities:Since the error message refers to a COM object, I would try this first:
Sandbox Settings > Resource Access > COM Access
Click on the Add button and put in the box:
{AE1E00AA-3FD5-403C-8A27-2BBDC30CD0E1}
then click OK a couple of times.
See if that helps. That resource isn't shown as being blocked, but it's worth trying anyway.
I'm not sure why the Resource Access Monitor put a ? at the end of that line.
I hope it means that it just doesn't know what it is, and not that it doesn't exist in the Registry.

If that doesn't fix it, try
Sandbox Settings > Resource Access > Window Access
Click on Add and put in the box:
µTorrent*
then click OK a couple of times.
(Since that's not a "normal" letter 'u' at the beginning of the line, you need to hold down the ALT key, while you type 230 on the numeric keypad on your keyboard. Then release ALT, to get the letter µ.
Or, copy/paste that line from this post)

Thanks for advice but i still get this alert.Utorrent seems to work ok still,but i would like to find out why i have started getting this alert.

If it works OK, maybe you should just click on the "Hide" button, when that message appears.
Not an ideal solution, I agree.

It must be in my setup.I used to have one sandbox for all but i changed to a seperate sandbox for utorrent .In this i have placed utorrent and firefox to start and have internet access.
If i now start utorrent first and then try to add a torrent from Firefox it will not load it and stops responding.
If i start Firefox and download a torrent file ,It opens utorrent and loads the file, and anymore i load into it.
I am using the latest beta and have tried reinstall of Utorrent

Its now sorted thanks.I have Utorrent and Firefox as default box.

Glad you sorted it out rijam and thanks for pointing it out. I think this is due to a change I made to the "COM server" thing in one of the recent beta versions. I hope when I release version 3.43.11 soon, it will resolve this problem properly.

This should be fixed in version 3.43.11.