Table of Contents|   | 
| INTRODUCTION |  1 | 
|   | 
| 1. OVERLAY SYSTEM |  3 | 
| 1.1 Creating Overlays | 6 | 
| 1.2 Nested Overlays | 8 | 
| 1.3 Automatic Overlay Management | 9 | 
| 1.4 Placing Overlay Files | 9 | 
| 1.5 Efficient Use of Overlays | 10 | 
| 1.6 Restrictions Imposed on Overlays | 10 | 
|   | 
| 2. DYNAMIC HEAP |  13 | 
| 2.1 Dispose | 13 | 
| 2.2 FreeMem | 14 | 
| 2.3 MaxAvail | 14 | 
|   | 
| 3. NEW EDITOR COMMANDS |  15 | 
| 3.1 IBM PC and Compatibles | 16 | 
|   | 
| 4. IBM PC GOODIES |  17 | 
| 4.1 Text Mode | 17 | 
 | 18 | 
 | 19 | 
| 4.2 Graphics Modes | 20 | 
 | 20 | 
 | 22 | 
 | 23 | 
| 4.3 Windows | 25 | 
 | 26 | 
| 4.4 Sound | 27 | 
|   | 
| 5. SUMMARY OF VERSION 2 ADDITIONS |  29 | 
|   | 
| 6. THE TURBO 87 OPTION |  31 | 
|   | 
| Appendices |   | 
|   | 
| A. SUBJECT INDEX |  32 |