I am unable to install STAAD.Pro CONNECT Version and few other software in 32 bit machine.
STAAD.Pro CONNECT version uses a 64-bit image, this can only run on 64-bit operating systems. Please note that 32-bit (x86) images can run on 64-bit OS, but not vice-versa.
All of our later releases will be using 64-bit image; we strongly recommend you to upgrade your system.