[Wine] C:\users\[me]\Temp\file.tmp cannot be opened

[islandBilly]

I have been trying to install Nobeltec4, an oldish windows chart navigation system, and the installer keeps stopping with the message, "the file C:\users\bill\Temp\GLF8e4.tmp could not be opened..." and suggests I check for permissions and space, etc. I have seen the documentation on that and I really do have permissions and plenty of space.

I go and browse the C drive under wine (v 1.2) and I can see the tmp file has been created. So why can't the installer that created the file now open it? Any ideas would be greatly appreciated :)