Hi again, sorry for the delay, I'm really in the storm for the moment.
We have not installed the SDK 4 to avoid a new jump of functionnality.
Unfortunately, an automatic update has reinstalled it ( ? ), and hop, 80070002 error.
Uninstalled it > everything working.
But since this day, one or two times a day, the component is lost.
Symptom : We receive the error "80070002", means component not found.
If we copy the dll (from ProgramFiles/DynPDF) in the folder C:/Windows/inetsrv, we receive another error "80131107".
To make it working now, I have to change the settings asp.net of one of my website, and it seems to re-register the framework 2.0.
But one time a day, it jumps automatically...
Best regards