Nik Software Sharpener Pro – The file xxx cannot be written.

Yesterday I downloaded and installed a trial version of Nik Software Sharpener Pro 3.010 on Windows 7 as Lightroom 4.2 plug-in. I wanted to test the plugin before buying it. I must say it is what I’m looking for, but I couldn’t save any adjustments on LightRoom 4.2. “The file xxx cannot be written. Please make sure that the file is not write protected and that you have sufficient access rights for that file.”

I’ve been googling for a solution, but to no avail… So there ended “Goolge expertize” ;-).

After some research, I noted that:

  • Whatever option I chose (‘Edit Original’, ‘Edit a Copy’, ‘Edit a Copy with Lightroom Adjustments’, the result is always the same error!
  • Running the plugin-installer as ‘user’ or running the plugin-installer ‘Run as administrator’ => No difference.
  • Set the executables to: always running the plugin in compatibility mode => Plugin cannot be started anymore.
  • Set the executables to: Always run the plugin as ‘Run as administrator’ => Plugin cannot be started anymore.
  • Set the executables to: Always run the plugin as both ‘Run in compatibility mode (XP SP3)’ AND ‘Run as administrator’ => Plugin cannot be started anymore.
  • Windows Event-Log shows no errors…
Later on I noticed that my files are always imported to a network mapped drive on a Synology nas. When I import my photos to a local drive, the error is gone… So I do suspect that the executable is not started as my user, but that’s guessing. At least I found a work-around ;-).
The bad news: this means that I have to rethink my entire process workflow setup ;-(…