IBM SC34-5764-01 - Manual (Page 369)

Example
'EXECLOAD POOL1:\USERS\USER2\TEST.EXEC (RFS'
This example loads the exec TEST.EXEC from RFS into storage. Subsequent calls of TEXT.EXEC will use
the loaded copy.
Notes
1. If an exec is loaded into virtual storage, it is automatically shared by all users.
2. If an EXECLOAD is performed to replace an in-storage exec with a newer copy, a shadow of previous
copies is kept in virtual storage until all active execs based on these copies end. This is accomplished
by a use count.
Commands
Chapter 25. REXX/CICS Commands 347