Updating Your Extension for New PowerFab Releases
Updated:
4 Nov 2025
When PowerFab releases a new version, your existing extensions continue working without changes. To access new API features, simply reference the updated DLL from the latest PowerFab installation directory and rebuild your program.
To use new functionality
- Install the latest Tekla PowerFab
- Locate the updated DLL in the install directory:
- Path:
Tekla.PowerFab.Interface.Extension\[your .NET version]\ - File:
Tekla.PowerFab.Extension.dll(.NET 6/8) orTekla.EPM.Extension.dll(.NET 4)
- Path:
- Reference the DLL directly from its install location (don't copy it)
Rebuild your program — new fields and commands are now available
Note for .NET 6/8 users: If using Tekla.PowerFab.Extension.dll, remove any copies of fabsuite-xml-request-v0108.cs, fabsuite-xml-response-v0108.cs, and matching .xsd files from your project. These are already included in the DLL.