Tarma Installer extension DLLs use the following data types and functions:
| Name | Type | Description |
|---|---|---|
| fTixCustomFunc | Function prototype | Defines the prototype for custom DLL functions. |
| TixHandler | Function protoype | Defines the prototype for the extension DLL's entry point. |
| cTixMessage | Data type | Defines the extension DLL message data. |
| cTixRegistrationInfo | Data type | Defines the customer registration data layout. |
| TIXRET_xxx | Value enumeration | Defines the allowable return values from TixHandler. |
| TIXSES_xxx | Value enumeration | Defines the installer's session types as communicated to the extension DLL. |