I’ve seen the “Specified module could not be found.” error too. During installation I got an error that /Windows/sysWOW64/socx5.ocx wouldn’t register. This is a library apparently used for the license and registration of EasyC. My solution was to copy the file from a working system, register it with regsvr32 (using complete file paths), install EasyC, and reboot.
Do you get any errors during EasyC installation about any files ending in .ocx not registering?