The error message is caused by another job having a lock on the FastFax library. You need to do two things. 1.) End the FastFax subsystem. We have a command you can put in your program, ENDFFX, that ends the subsystem, and STRFFX to start it back up again. 2.) The FastFax processor also has locks on the FastFax library. Power down the FastFax processor by taking option 12 from the Work with FastFax Processor’s screen and select POWERDOWN CNTRLD. You can also automate this by calling one of our programs FFX809CL. This program works with the processor and lines. To use this program refer to source file FFXINFO in library FASTFAX, then look at member FFX809CL. This will tell you what parameters to load and we also supply code you can copy into your program.