Condition code for NAS or client

Dybs

I want to condition code in a codeunit for file handling dependant upon whether the code is called from the Nas (server side) versus called from the client directly. If the latter I need to use a UNC path so want to use dotnet file handling but I can't use that for NAS as it give callback error so I want to use file virtual table for NAS.
This is in 2016. Ideally I need something similar to isservicetier. Any ideas out there?

kriki

And why not use the UNC path in both cases? If the UNC is pointing to the server where the NAS is running, it has no problems using the UNC path pointing to itself. It avoids the hassle to maintain 2 different paths.

Belias

GUIALLOWED > if yes, you are on a client; if no, you are on nas or in a ws call

Belias

Just one more bonus suggestion:
take a look at CURRENTCLIENTTYPE instruction...it won't be useful for this particular problem, but you can probably found some use of it in your project.

kriki

And why not use the UNC path in both cases? If the UNC is pointing to the server where the NAS is running, it has no problems using the UNC path pointing to itself. It avoids the hassle to maintain 2 different paths.