Integrations (PTC products, 3rd party products and code) > Code integration (Ada, ARINC 653, C, C#, C++, IDL, Java, SQL and VB) > Ada Code > Generating Ada code > Migrating Ada synchronizer generation template schemes to work with ACS (Ada code) > Upgrading Code Generator DLLs to work with the latest version of ACS (Ada code)
  
Upgrading Code Generator DLLs to work with the latest version of ACS (Ada code)
If you are upgrading from a previous version of Modeler and you want to continue to use the ACS Code Generator DLLs you are using:
You must regenerate those Code Generator DLLs from their associated TDK models using the TDK provided with the latest version of Modeler. Ensure that you generate to a target folder that is empty.
Update the TDK profile in your TDK model before regenerating the Code Generator DLL.
We typically recommend that you use the new Code Generator DLLs provided with the latest version of Modeler, because the new Code Generator DLLs have maintenance changes and other improvements.
If you have installed Modeler to the default location, the replacement Code Generator DLLs reside in subfolders of the following folder.
For Windows 7 and later operating systems:
C:\Users\<user>\AppData\Roaming\ItsShadow\ScriptDir\AdaGen
For 64-bit versions of pre Windows 7 operating systems:
C:\Program Files (x86)\PTC Integrity Modeler\Modeler\System\AdaGen
For 32-bit versions of pre Windows 7 operating systems:
C:\Program Files\PTC Integrity Modeler\Modeler\System\AdaGen
If you have customized the Code Generator DLLs you are using, you can regenerate those Code Generator DLLs using the TDK provided with the latest version of Modeler, or you can apply your customizations to the new Code Generator DLLs. For information about customizing a Code Generator DLLs, see Overview of customizing ACS Code Generator DLLs - TDK Legacy model (TDK)(link works only if TDK is installed).
For information about migrating previously provided Ada Synchronizer generation template schemes to work with ACS, click here Migrating Ada synchronizer generation template schemes to work with ACS (Ada code).