The application pool '%1' has enabled 32-bit worker processes, but no SysWOW64 support has been found. The Windows Process ...

The application pool '%1' has enabled 32-bit worker processes, but no SysWOW64 support has been found. The Windows Process Activation Service (WAS) will disable the application pool.  To resolve this issue, either disable running as 32-bit worker processes or install the SysWOW64 support.  The data field contains the error number.