Hi alfred,
alfred wrote:I installed Barca again. When doubleclicking in my filemanager on a .pps it is correctly opened with Softmaker Presentations- this is the only possibillity on my PC. Barca opens all kinds of files, jpg, pdf, wmv...... but it does not know how to open a Powerpoint presentation.
Pity it doesn't work on your end.
Perhaps there's a problem between Softmaker and Barca, since it works here with Open Office.
This is not very bad.... but it is annoying. It would be more comfortable to view the pps from inside Barca, to know if it is worth saving or not.
Viewing it inside Barca will never work, since the PPS will be opened in another program.

I only have one other suggestion and that's to use the
PowerPoint Viewer.
If that doesn't work then I'm out of suggestions to make it work on your end.
Perhaps using a registry cleaner will help. Reboot afterwards and be sure to let the registry cleaner make a backup prior to deleting invalid registry entries.
I forgott to say: I used Barca portable too (Installing, copying the folder in another folder, deinstalling. This works! I could make a working backup direct to my flashdrive). Now it is really installed- but with no change concerning pps.
Okay, it was worth a shot.
Weird why Windows won't accept the command from within Barca.
Also forgot to ask what OS you're using. If Win 7, it could be due to some incompatibility, although I can't check it here.
Anyhow do have a fine weekend and till soon.
