Acrobat Reader XI fail to open file from unc path "Access Denied"

Hi,

When we try to open a pdf file from an unc path by double-click on it there is an error message : "There was error opening this files. Access Denied"

If we do "File -> Open" the file open correctly. Same if we copy the file localy.

After looking around Internet and other thread Acrobat Reader X got the same problem but seemed to be resolved with an update.

If we desable "Enable Protected Mode at startup" the file open correctly (it is not a solution).

Doesanyone have asolution to thisproblem ?

OS : Windows XP SP3

Acrobat Reader : 11.0.2

Regards,