Windows Vista in a Nutshell by Preston Gralla The unconfirmed error reports are from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification This page was updated March 25, 2008. UNCONFIRMED errors and comments from readers: {iii} 3rd paragraph; Chapter 13, The Registry, describes the organization of the Windows XP Registry, [16] Table 1-2. Upgrade options for Windows Vista; All upgrades to 64 bit Vista from 32 bit prior operating systems must be clean installs as per Microsoft and personal experience. You can leave your data and applications on the drive (back it up anyway) but the applications need to be re-installed in order to work. {661} 8th bullet point; The author states "When you run a Windows program and it pops up its own window, control returns immediately to the batch file and the next line is executed. This 'race condition' is unfortunately unavoidable with batch files; you'll have to use a WSH script for this type of control." However, this condition is avoidable in simple batch files by calling Windows programs by "start" with the "/wait" switch, i.e. "start /wait Windows_Program" instead of only "Windows_Program".