This program was written on the suggestion of Ian Ameline of IBM, so if it doesn't work, blame him . This program will load the IBM C Set/2 compiler into memory and then will sleep until interrupted by a sigint (CTRL+C). By keeping the compiler in memory, all the compiler loading for each module is avoided. If there is not enough memory, the compiler will be discarded and reloaded when necessary, so this program will not cause swapping to occur. In other words, if you have sufficient memory, you'll obtain a significant boost in performance. If you don't have enough memory, this program will not have a negative impact. The easiest way to use this program is to create a program object. Set the working directory to \ibmc\bin, set the OS/2 window to minimize and execute the program before running your build. When through, maximize the window that contains the program and type CTRL+C to kill the program. You may modify, give away, throw away or do anything to this program you like. If you do improve it, we all would appreciate it if you would pass on the improvements. Good luck, Matt Osborn 75230,1346