Crystal Reports Runtime 64-bit: Error 1606

Note: This post is from 2011. The underlying issue and fix may still be relevant, but installer behavior and OS defaults can change over time.

While moving an ASP.NET application from an older IIS6 server to IIS7, I ran into a problem deploying the 64-bit Crystal Reports redistributable.

On a fresh install of Windows Server 2008 R2 (IIS 7.5, ASP.NET, .NET, etc.), the runtime installer immediately failed with: 

Error 1606: Could not access network location \ASP.NETClientFiles\.
Crystal Reports Error 1606

Fix: Run the installer from an elevated command prompt.

It ended up being a permissions/privileges issue. Even though I was using a Local Administrator account, I still had problems until I launched an elevated command prompt and ran the installer from there.

After opening an elevated command prompt, navigating to the MSI (for example, CRRuntime_64bit_13_0.msi), the installation completed without a hitch.