IRestoreLinkCmdData in CS4?

Hi;

I am converting cs3 plugin to cs4.

Our plugin has putting images to InDesign documents,  sometimes there is need to update path to images.

In CS3 this was done by IRestoreLinkCmdData

http://support.adobe.com/devsup/devsup.nsf/docs/53940.htm

According to CS4 documentation IRestoreLinkCmdData is still supported, however I get “Invalid UID” warning when cmdData->Set(theDb, theDataLinkRef->GetUID(), &theNameInfo, &theNewFormat, theFiletype, IDataLink::kLinkNormal);

And then InDesign crashes

Do anyone has success with this?

Regards

Chris