Create a file group of all the programs that write a *.spl file to that directory. Go to My Protected Files → Groups → Add → New Group (name it whatever you want to). Then go to Computer Security Policy → Add → Select → “Your File Group”. Now for that group, modify the file/folder access rights by adding the directory to which they write to. Access Rights → Modify “Protected Files/Folders”
Thanks for the response, I did try this and it works, however it seems overly complicated, particularly since every program that can print will have to be added to the group, and who knows where to find all those exes.
Can I not simply exclude the spool directory or .spl files from being checked by defense.