A bunch of VMSN files under VM folders ... How can I delete these files ?

Hi !

I have 4 VMs having around 300 vmsn files 20KB big. I would like to know how can I get rid of these files ?

There's NO SNAPSHOT in the SNAPSHOT MANAGER, so why I have so much files like that and why the system don't delete them if there no more snapshot associated ?

There's a recipe to clean a VM FOLDER under VMFS to get the free space ?

Any help will be appreciate.