Losting DLL permission after Plesk update

On every plesk update, DLL's like ASPUPLOAD, ASPEMAIL and ASPJPEG and Myodbc DLL losing permission of write.

This cause me a HUGE problem for my clients who's every week open ticket with this issue.

Any tip to fix this? Is this a Windows plesk issue? The funny thing is this happen on booth Windows plesk server we already use.

How can I fix this permission for not losing it again?