Hello,

I’m trying to install a 32-bit ASP.NET application onto a 64-bit IIS server running on Windows Server 2008. This is a clean installation of the operating system with no other applications installed.

As a prerequisite for our installation, we run the 32-bit version of aspnet_regiis –i

It fails with the following message: The error indicates that IIS is not installed on the machine. Please install IIS before using this tool.

Additionally:

• IIS is definitely installed.
• The 64 bit version of aspnet_regiis runs cleanly without warnings.
• “Enable 32 bit applications” is set to True in the DefaultAppPool’s Advanced Settings.
• The IIS Metabase and IIS 6 configuration compatibility” component is installed.
• We have a test VM where this error occurs as well as test VM where both the 32 bit and 64 bit versions of aspnet_regiis run without errors. We've had no luck distinguishing the differences between the two test VMs.

We have struggled with this issue for several days to no avail. Any suggestions would be greatly appreciated!