Drop files to explorer with delayed rendering

Everyone knows how to drop files to explorer with an OLE data source, using the CF_HDROP clipboard format. OK.
But when doing like this, you have to make the file ready BEFORE the drop occurs. It's not convenient for a huge file, or for a file which will be downloaded.
If I use DelayRenderData, the framework calls OnRenderData before the drop occurs.
Anyone has a clue ? I've browsed the net for 3 days, nothing! Yet applications like winzip and ftp-voyager found it...
Kisses from Paris,
Stephanie.

were u able to find any solutions for ur delay rendering problem ?

NewOrko