Re: Copying locked network files

I'd guess that the remote file has been opened by a program that allows read or read/write share access by other programs but that the local program is trying to access that file using the wrong share mode.

For example, a file can be opened with any of the following share modes:
none: others will be denied shared access
read: others will be allowed shared read access
write: others will be allowed shared write access
read/write: others will be allowed shared read or write access
delete: others will be allowed to delete the file

When another program attempts to open the same fie, it must do so with a share mode that is compatible with the mode used by the first program to open it. Otherwise access will be denied.

I am aware from another program I use that, somewhat counter-intuitively, opening an already open file with read/write share mode will sometimes succeed whereas opening that file using read only share mode will fail.

So if you are able to copy that open file with some programs but not others, I'd say that the unsuccessful program is using the wrong share mode when opening the file for shared access.

Garry