Visual Studio 2008 Professional Edition Please verify that you have Visual Studio 2008 Professional installed prior to installing the SP1 software   Download Visual Studio 2008 Professional Language File Size Chinese (Simplified) 3.79 GB Chinese (Traditional) 3.65 GB English 3.30 GB French 3.52 GB German 3.58 GB Italian 3.45 GB Japanese 3.86 GB Korean 3.70 GB Russian 3.76 GB Spanish 3.47 GB     Download Visual Studio 2008 SP1 Language File Size Chinese (Simplified) 831 MB Chinese (Traditional) 831 MB English 831 MB French 831 MB German 831 MB Italian 831 MB Japanese 831 MB Korean 831 MB Russian 831 MB Spanish 831 MB System Requirements: Supported Operating Systems: Microsoft Windows Server 2008; Microsoft Windows Server 2003; Microsoft Windows Vista; Microsoft Windows XP Processor: 1.6GHz Pentium III+ RAM: 1 GB of available physical RAM Note: MSDN Subscribers can also download these files from MSDN Subscriber Downloads. Other Visual Studio 2008 Trial Software Visual Studio Team System 2008 Team Suite Visual Studio Team System 2008 Team Foundation Server