
So if you've never installed any of those betas you don't need to run the prep tool, however based on my experience installing Visual Studio over the years, I like the sound of "verifying Visual Studio integrity" before installing. Microsoft Visual Studio 2008 - KB949325.

Microsoft Visual Studio 2008 - KB944899.Microsoft Visual Studio 2008 - KB945140 (Beta).The tool will verify Visual Studio integrity and remove previous Visual Studio 2008 updates or pre-release software Heath Stewart's post on the Service Pack Preparation tool indicates that the SP1 install will block says the SP1 install if you've installed the SP1 beta at any point, so the main reason I'm calling the Service Pack Preparation Tool out here is to save you from going through an unnecessary manual install only to get the prompt indicating that you still need to run the Service Pack Preparation Tool. I’ve been listening on Twitter, and it’s been a smooth upgrade for most people (notable exceptions: Rick Strahl, Sam Gentile). I ran it on two of my computers (which have been littered with alpha and beta stuff) and the Visual Studio 2008 SP1 install ran flawlessly. So – that’s all been simplified now, and in most cases it sounds like it’s working great.

I ended up having to uninstall everything developer related to fix a Silverlight Package Load Failure error.

I had to a month ago, and it didn’t go very smoothly for me – probably due to some internal, pre-release builds of Silverlight 2 I’d installed at the beginning of the year. The original help information SP1 Beta (since updated) had a long, involved un-installation process, so people who’d had to uninstall that before figured we’d have to go through that process again. I think the biggest tip here is to use the Visual Studio 2008 Service Pack Preparation Tool. Got the install media? Great, onward! Use the Visual Studio 2008 Service Pack Preparation Tool You don’t need it yet, but you don’t want to get half way through the upgrade and realize your install media is back at home, or that you deleted the ISO file and you have to wait for the 4GB download.

In my case, I installed of in ISO image, so I mounted the iso file (en_visual_studio_team_system_2008_team_suite_x86_圆4wow_dvd_X14-26461.iso) as my F:\ drive and browsed to vs_setup.msi. If you installed from a Visual Studio 2008 Professional DVD or image, you can’t just insert a Visual Studio 2008 Standard DVD. The file it’s looking for is vs_setup.msi in most cases, but they’re not all created equal. I was prompted for the original installation media both when uninstalling the SP1 Beta and when installing the SP1 RTM. NET Microsoft Visual Studio Have your Visual Studio Installation Media Handy
