Hi Hitesh,
CODAC Core System always calls the IOC application (the name that also must be a valid C identifier for the generated code to work) different than the IOC instances.
If you make that separation, there is no issue. (It also allows multiple IOCs to run the same binary, which makes a lot of sense for a large system.)
In order to simplify things for inexperienced users, makeBaseApp uses the same name for the IOC instance and the application unless you tell it to use a different one. Only in that simplified case your IOC name must also work as an application name (i.e., be a valid C identifier).
Cheers,
~Ralph