It's all physical, desktop machines from different vendors, no optimizers, I will ask support for more information. The slowness is basically as followed: My product, Ivanti workspace control, manages the user workspace, customers report that if machines are not rebooted regularly that after 7-10days the logon actions and any action configured in the product is being processed slower than the days before. We suspect it's a dotNet or chipset bug, machines are being shipped to our office now so we can investigate.