Hot off the IIS5 mailing list:
Hi,
Just a word to let you know that I’ve post RC1 of Authdiag.exe to IISFAQ.com. AuthDiag is a new tool to assist with authentication troubleshooting. This is one of Microsoft’s most ambitious IIS troubleshooting utilities and is the latest in a series of tools (ssldiag, logparser), that are aimed at helping to solve problems most frequently encountered by admins. The utility goes beyond simply checking NTFS permissions, but reports on registry, metabase, UNC path problems and others configuration issues. There is a command line and GUI implementation. Look for CR2 to be coming out shortly.
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Thanks,
Brett Hill
Description from iisfaq.com reads:
Microsoft has released to CR1 of AuthDiag, a new IIS troublshooting tool designed specifically to assist with troubleshooting authentication. This is no ordinary utility in that it can help wtih diagnosing problems with NTFS, privledges, invalid registry key permission, incorrect metabase properties, UNC properties, and more.
Thanks to Brett and the MS IIS Team for another great tool!