To copy a current routine from Cache Studio (e.g. PSODIR.INT), choose select all, then copy,
then paste into a WordPad document. (WordPad is under All Programs, then Accessories).


To save the routine into this folder (copy of changed routines), first change the Save as Type: 
to "Text Document", then change your File name extension to .DAT

e.g.:

Save As

File name: PSODIR2.DAT
Save as Type: Text Document

When re-opening (e.g. to copy back to Cache Studio or just to view), click on "Open With..." and then 
"Select the program from a list" and choose WordPad. Then you can select all and copy and then paste 
the file (routine) back into a routine name (e.g. PSODIR2.INT) that is already opened up in Cache Studio.

Using WordPad keeps from losing the formatting that Cache Studio uses.