Brian, are you running Optimizer on the same PC and as the same user on which WX5 is installed?

Yes ... same user ... same computer ... iwzip file on same drive (C:\) ... using X5 v.15 installed on same drive.

O WebSite X5 Optimizer está encontrando erros, veja nas cópias de tela abaixo e não tenho a solução.

Brian & Leonidas

At what point does Optimiser throw this error? When you first open it? When you select an iwzip and it starts importing and analysing? When you select an optimise option and start optimization, or when you select save?

For what it is worth, have you tried importing your iwzip back into v15 before attempting an optimise and are you sure there are no pending Windows Updates lurking in the background? I have also assumed you are working locally and not over a network or USB connection.

I have advised Incomedia of your issue, it may also assist if you can provide OS, memory and CPU details.

I've been away ... back today ... installed updated 'Optimizer' ... same problem.

I have the following:

• Windows 10 Pro 64-bit with all updates
• Intel Core i5-3570K CPU @ 3.40GHz
• 32GB ram
• C:\ is 256GB SSD
• D:\ is 8TB Sata
• NVIDIA Geforce GT 710 x 2 with 3 monitors

The optimizer goes about 80% across, then errors.

I have tried it on a number of iwzip files saved in versions 11, 12, 13, and 15.

All done on the above computer.

Thanks for any help, as the program could be really useful.

Brian, can the iwzips be opened in v15?

I have only seen this behaviour once when the iwzip was not the actual problem, and it was caused by the anti-virus/malware/firewall protection. Can these be temporarily disabled/uninstalled??(excluding windows defender and windows firewall).