Integrations (PTC products, 3rd party products and code) > Code integration (Ada, ARINC 653, C, C#, C++, IDL, Java, SQL and VB) > IDL Code > Generating IDL code > Overview of generating IDL code (IDL code) > ACS Code Generator DLLs (IDL code)
  
ACS Code Generator DLLs (IDL code)
Code Generator DLLs determine what type of code is generated by ACS. From the Launch ACS/TDK dialog you select the Code Generator DLL you want to use.
ACS is supplied with the following Code Generator DLLs for generating IDL code:
IDL3PlusIndividualFileGen
Generates IDL files from IDL3 items; and generates IDL files, Component Deployment Plan (CDP) files and Component Domain Descriptor (CDD) files for IDL3+ items.
Use this Code Generator DLL when you want ACS to generate individual IDL files for appropriate items, rather than module files.
IDL3PlusModuleFileGen
Generates IDL files from IDL3 items; and generates IDL files, Component Deployment Plan (CDP) files and Component Domain Descriptor (CDD) files for IDL3+ items.
Use this Code Generator DLL when you want ACS to generate module files for Namespace Packages, rather than individual IDL files for appropriate items.
If you have installed Modeler to the default location, the supplied Code Generator DLLs reside in subfolders of the following folder (the name of a Code Generator DLL's folder matches that of the Code Generator DLL).
For Windows 7 and later operating systems:
C:\Users\<user>\AppData\Roaming\ItsShadow\ScriptDir\IDLGen
For 64-bit versions of pre Windows 7 operating systems:
C:\Program Files (x86)\PTC Integrity Modeler\Modeler\System\IDLGen
For 32-bit versions of pre Windows 7 operating systems:
C:\Program Files\PTC Integrity Modeler\Modeler\System\IDLGen
You can customize a supplied Code Generator DLL through its associated TDK model.