| Value | Description |
| 0 | Everything is OK |
| 1000 | Integrity error (file is corrupted) |
| 1001 | Not enough free space to extract data |
| 1002 | Unexpected I/O error1 |
| 1003 | Selected Java is uncompatible |
| 1004 | No Java found on the system |
| 1005 | Cannot run Java machine |
| 1006 | Timeout during process execution (e.g. during unpack200ing of jars in bundled JVM |
| 1007 | User terminated the process |
| 1008 | Some of the external resources (jar) required but missing |
| 1009 | Cannot extract bundled JVM |
| 1010 | Cannot verify bundled JVM |
| 1022 | Cannot initialize internal event system |
| 1023 | Cannot initialize initial GUI with progress bar |
| 1024 | Occurs only when the .exe stub is executed (nothing bundled) |
| 1025 | Executing installer on Windows 9x system which is unsupported |
| Value | Description |
| 0 | Everything is OK |
| 2 | Cannot create temporary directory |
| 3 | Cannot find TestJDK.class for Java verification |
| 4 | Cannot find Java on the system |
| 5 | Selected JVM is uncompatible |
| 6 | Never occurs... to be removed |
| 7 | Cannot get number of blocks required for data extraction |
| 8 | Not enough free space to extract data |
| 9 | Integrity error (file is corrupted) |
| 10 | Some of the external resources (jar) required but missing |
| 11 | Cannot extract bundled JVM (either create tempdir for it or run self-extracted archive with JVM) |
| 12 | Cannot unpack200 jars in bundled JVM |
| 13 | Cannot verify bundled JVM |