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If you downloaded an ISO and have problems...

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Note: this post has been edited with revised information

I just received my first report of a user who downloaded an ISO version of our SDK and reported an installation problem. It turns out the problem was due to a corrupt ISO download.

To verify that your download of an ISO file for a Windows SDK Feb CTP build is not corrupt, download the CRC Utility. (Note: this is not a Microsoft application. Use at your own risk. )

To run the CRC test, open a command prompt and run the utility. providing it the name of the file (i.e. crc c:\6.0.5308.0.9.WindowsSDK_Vista_idw.DVD.Test.img) The CRC utility will run two tests on the ISO: it will verify if the ISO is valid, and it will give the AutoCRC signature for the file. The AutoCRC signature for the Windows SDK Feb CTP ISO is 0xE18E3367. You should also confirm the size of the ISO is correct: 1.06 GB (1,141,606,400 bytes).

If it fails any of these three tests, re-download the ISO. If it still fails after re-downloading, please email me. Thanks!