Your only option is to change the references in the SW2015 assembly files and point them to new location. You can do it from the SOLIDWORKS file open menu (by clicking on references) OR SOLIDWORKS explorer.
Here is something you can try.
- Create another backup copy of SW 2014 library folder and put them in a different location.
- Now copy the files from PP 2014 to PP 2015 folder.
- Rename the PP 2014 folder to something else (for e.g. PP 2014_OLD).
- Add the location of PP 2015 under search paths under Tools > Options > File Location (so that SW will try to find the files under this location).
- Now open the files in SW2015 and check if SW is able to find the files from the new location since the old location is no more available.
- If all goes well then save you files and rename the PP 2014_OLD to PP 2014.
But again please keep a backup copy of PP 2014 folder/file or any files which you want to keep as 2014 version.
Yeah, this was also my idea...
It worked, but it should be nice if there was a tool for this.
Some conversion tool that converts normal files to the newer version and copy, convert and replaces files in certain directories.
One more way would be to change the properties of the files under PP 2014 and set them to read only. This way the files won't be converted to newer version and should be available for both 2014 and 2015