How-to increase the IIS7 upload setting. This was posted on http://forums.iis.net
Here is the syntax.
"You are probably hitting a new limit in request-filtering feature (replacement for url-scan) in IIS7. Try to set this to see if it helps
appcmd set config "My Site/MyApp" -section:requestFiltering -requestLimits.maxAllowedContentLength:104857600 -commitpath:apphost
the default for this is 30000000 (slightly less than 30MB)"
Thanks to Anil Ruia for posting this tip.