Isdbdc.exe
(Compaq / Trident??)
Background task found solely on Compaq Presario PCs and which seems to be related to the Trident graphics video drivers but we are not certain about that. We do not know what this task does.
Recommendation :
If you intend to use Adobe products, make sure you have the latest Trident drivers as there seems to be a conflict between the early versions of ISDBDC and some Adobe products, resulting in "Invalid Page Fault" errors. Other than that, as we do not know what this task does we can only recommend that you leave it alone.