- Can SDL Trados 2006 SDK documentation be available for evaluation of the demo version?
The SDK documentation is not included in the Freelance version. It's only available in the corporate version of Trados. This was also the case with Trados 6.
- In case anyone has used 2006 and previous Trados versions, have there been any major changes in the Translator´s Workbench API (Interop.TW4Win)?
I can't guarantee 100% but I'm nearly sure that the TRADOS 7 API is backwards compatible. The changes would be the addition of new APIs to use new features included in the latest version.
You might want to contact Trados about this as well.