| Value | Description |
| 0 | ViewerOK |
| 1 | ViewerGenericError |
| 2 | ViewerInvalidParameter |
| 3 | ViewerOutOfMemory |
| 4 | ViewerObjectBusy |
| 5 | ViewerInsufficientBuffer |
| 6 | ViewerNotImplemented |
| 7 | ViewerWin32Error |
| 8 | ViewerWrongState |
| 9 | ViewerAborted |
| 10 | ViewerFileNotFound |
| 11 | ViewerValueOverflow |
| 12 | ViewerAccessDenied |
| 13 | ViewerUnknownImageFormat |
| 14 | ViewerFontFamilyNotFound |
| 15 | ViewerFontStyleNotFound |
| 16 | ViewerNotTrueTypeFont |
| 17 | ViewerUnsupportedGdiplusVersion |
| 18 | ViewerGdiplusNotInitialized |
| 19 | ViewerPropertyNotFound |
| 20 | ViewerPropertyNotSupported |
| 21 | ViewerProfileNotFound |
| 22 | ViewerPdfCanNotDecrypt |
| 23 | ViewerPdfNeedPassword |
| 24 | ViewerPdfBadPassword |
| 25 | ViewerInvalidTemporaryFileLength |
| 26 | ViewerErrorCreatingTemporaryFile |
| 27 | ViewerPdfCanNotOpenFile |
| 30 | ViewerPdfRenderingPageError |
| 35 | ViewerPdfUnexpectedError |
| 40 | ViewerIsedQuickPdfNotUnlocked |
| 100 | ViewerInternetOpenError |
| 101 | ViewerInternetConnectError |
| 102 | ViewerInternetHttpOpenRequestError |
| 103 | ViewerInternetHttpQueryError |
| 104 | ViewerInternetFtpGetFileError |
| 105 | ViewerInternetHttpSendRequestError |
| 106 | ViewerInternetHttpInvalidFileLength |
| 107 | ViewerInternetHttpTransferError |