I have seen quite a few reports of the VS 2008 installation not being able to copy a specific file. This almost always means that there is a corruption on the media or in the ISO.

The first trouble shooting step I take is to XCOPY the contents of the DVD or ISO to a local hard drive. If the xcopy succeeds, then the media is probably not corrupted. In this case, you can just install from the hard drive by running the setup.exe from the folder you copied the files into. VS and NETFX can install from a network location or from a local media in a sub-directory.

If the XCOPY fails, you probably have a corruption. Basically you will need to re-download the ISO or get a new media.

One option is to try the Microsoft Secure Content Downloader from Microsoft Research. This is a limited time trial, so it might not be available when you check the link.

One option is to try the Microsoft Secure Content Downloader from Microsoft Research. This is a limited time trial, so it might not be available when you check the link.