Hello,

I try the following (DNN 04.09.05) :

1/ I create a folder in Portals/0/ using ADMIN > File Manager
2/ I upload a file in it (called myfile.grf / extension .grf is specific to a software for making video).
3/ I try to access the file by typing http://mydomain.com/Portals/0/test-folder/myfile.grf

I have an error: Not Found / The requested document was not found on this server.

Note: if I upload a .zip file, a .gif file, a .jpg file or any "standard file", it works... So it's linked to the type of file. What do I do wrong ??
In Host Settings > Other Settings > File Upload extensions, I have those particular files: jpg,jpeg,jpe,gif,bmp,grf

Thanks,
DV FX
PS: I have URL Master, if I disable it, it's the same problem.

 That was exactlly the problem, I just enable the MIME extension at IIS webserver level and now that's ok (I created some special MIME content).

Thanks a lot Horacio, thanks so much !!
DV FX