>>In order to test if the VFP 9 application has a problem with the Internet/FQDN-style UNC, I created a log (last night) that records who opened the application, from which PC, and what was the the value of the
>>

>>addbs(justpath(sys(16,0)))
>>

>>when application started. That is, what was the Target of the application in the desktop shortcut.
>>
>>The results are as following:
>>During the entire day today (the customer is in Europe, so it is already evening there) 6 users started the application from the internet/FQDN-style. That is, for these events the log file shows the value of:
>>

>>\\servername.organization.healthcare\appfolder\
>>

>>
>>And not one time - out of these 6 times - an error occurred.
>>
>>Therefore, I am wondering, does VFP 9 have the problem with the FQDN-style UNC sometimes but not all the times? Because, clearly, it does not have the problem all the time. And if this is true, the problem happens sometimes, what could cause the problem happen?
>>
>>Please let me know what you think.
>>
>>TIA
>
>Are all users operating within the same domain?

I don't know. Here is the exact message from the System Engineer (I masked the organization name):

Yes that is a normal behavior to see.  That is a dns issue as connections coming from (IT name) to access the
 share of AppName does fall under organization.org but dns entries goes under organization.healthcare which 
still resolve to the AppName ip so the FQDN will then become servername.organization.healthcare.

Honestly, I don't understand 100% of what he says above. But maybe it will answer your question?