Okay, now it's my turn to not understand.
If I'm understanding the two of you correctly, you are saying that if one enters a specific (non-CVI) folder in the "Directory" control of that dialog (for example "c:\LabWindows progetti") then CVI will search through that folder,
and also through the CVI installation folder? That is definitely not expected behavior, regardless of how many projects exist in one's workspace.
Also, are you sure you unchecked all the "Additional Files" in the list at the bottom, using the "Clear All" button? If you haven't, that might explain what you are seeing.
Luis
NI