IIS7.0 On Azure - Dot at the end of a URL causes 404 error

I have production VMs on Azure cloud service with IIS7.0.

I recently discovered that one or more dots at the end of the URL cause a 404 error. It is a known bug of IIS7+, but I'm looking for a solution on Azure.

I searched for a solution but none of those I found has worked:

1. the URL rewrite engine cannot be used since the error is emitted before the URL rewrite module can process the URL

2. some proposed workarounds does not work on Azure/IIS7.0 (e.g., runAllManagedModulesForAllRequests, <httpRuntime relaxedUrlToFileSystemMapping="true" />)

thanks in advance for any help