Hi, I'm getting along pretty good with the Crawford (99V) Airport in Western Colorado USA "modernization". I have a nunber of buildings, a reservoir and an airport pond just about ready. THe water will be no problem because its LWM and CTP stuff. However the buildings were made with Gmax and the resulting models for FS2004 have GUIDs for the objects. I understand that Windows assigns these unique GUID values which means that my copy of windows knows what they mean. Can I upload only the BGLs or do I have to send one or more XMLs that have multiple objects in them along with all of the MDLS to allow recompile by any other users. The project has a few BGLs that I know can stand alone.Do any of the generated library objects exist outside of the MDLs and XMLs, if so where?Larry Costa

Hi Larry,Only the BGL files is OK. In the XML code you can see the ModelDate tag which defines the object and attaches a GUID to the MDL. In the LibraryObject tag that GUID is then called again. So every PC knows which object belongs to the GUID.

Thanks Arno,I wasn't at all sure about that. I guess I can tackle the upload mechanics now and what to include in it. I have a few details in the model to fix before I do that but it won't be long before I expose my work to this world. Larry

IOW the GUID is used internally by the BGL compiler and registered internally inside the BGL (probably) so no registration in the Windows registry (like with ActiveX controls) is required.

Yes, that is correct. It is stored in the BGL files and the scenery engine takes it from there. No interaction with Windows.So problems can only arise when you have the same GUID defined for more than one object.