Additional CHM file created - why and how?

[Omegginson1]

I have a project called Core.flprj. When I build the primary project it creates the Core.chm file as expected, but in the same folder I also get another chm file (with an earlier date and time). I have done a search in the whole project to see if I could find where that second chm file came from but I can’t find anything! Any ideas???

I should also say that I did not create the project in the first place and that the colleague who did has now left.

Thanks for any help anyone can give me.

[RamonS]

When you delete both CHMs (or move them to a different location) and the compile again, does it still drop two files?
Are the two files in the output folder or in the publishing location?

[Omegginson1]

If I delete both CHMs they are both recreated in the Output folder.