Use IExplorerUtil.UpdateFileProperties inside framework webservice extention in vault 2026

[stp44QQS]

I have a history of using the IExplorerUtil.UpdateFileProperties inside a webservice extension (for catching when applications add files to vault). It as worked (2025 and backwards) fine for both cad and ms office applications.

But in 2026 it seems since vault explorer has transfered to .core standard (i guess) it no longer works when the source application adding file to vault is framework standard (in my case ms office word/excel). It throws an exception as soon as i come to the code part that uses the IExplorerUtil.UpdateFileProperties API call. It still works fine for .core application (such as inventor)

Is it possible to use vault explorer IExplorerUtil.UpdateFileProperties from inside an framework webservice?

Thanks

[Markus.Koechl]

If the calling application is an Office extension/add-in, you need to continue using the .NET Framework while referencing the Vault .NET Framework libraries. If your application is an extension of Vault Explorer or a Vault Client WebService extension, the target platform has to be .NET Core (referencing the SDK. Core*.dlls).