If the Sybase IQ server will not start on a 32-bit Windows system, make sure you have enabled the Microsoft 4GT RAM Tuning feature, if appropriate for your version of Windows server.
The 4GT option configures the Windows operating system at boot time to allow the allocation of up to 3GB of dynamic memory for a user process. See “System requirements” in the chapter “Installing Sybase IQ” in the Installation and Configuration Guide for Windows for a list of supported Windows platforms and details on enabling the 4GT feature.