Thread was moved from "General Discussions > User Solutions and Workarounds". Stacey M Since upgrading my MacBook Pro to Leopard running Parallels Desktop build 5160 I have been receiving an error message when trying to open any attachment to an Outlook email message telling me that: "Parallels Desktop cannot open file C:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files\OLKF5\DOCSSEA.DOC from the guest OS. You can open only files located on Windows drives (volumes) which have drive letters assigned or in Parallels Shared Folders" This problems exists for all file types I have tested including PDF, XLS, PPT, etc. All of these file types opened successfully prior to upgrading to Leopard. All of my Mac applications show up in Parallels Shared Applications in the Windows start menu, but even opening them from this location still does not allow me to get an appropriately suffixed attached file to an Outlook message opened. I have the "Share Windows Applications" and "Share Mac Applications" selected in the configuration editor as well as "Smart Select" checked (as they were when this worked correctly prior to Leopard update) The Shared Windows, Shared Mac, and Smart Select choices under Applications are grayed out and not selectable, although options under each are available - selecting populate under Shared Mac did not result in seeing a list of applications. The only application I run on the Windows XP SP 2 VM is Outlook for Mail, Calendar, and Contacts. Any ideas on what configuration option I need to tweak or change?