Error Messages
If the user is unable to open the integration, this may be due to one of a number of
      reasons. The error message displayed to the user should include an error number. The following
      table lists the error numbers with an explanation of the possible problem:
    | Number | Meaning | 
|---|---|
| 1 | Invalid number of input parameters. | 
| 2 | Failed to create DeProxy.exe instance. | 
| 3 | Invoke Action Failed in Toolkit. | 
| 4 | COM Error occurred during invocation. | 
| 5 | An exception occurred during invocation. | 
| 70001 | No integration exists for this file format. | 
| 70002 | Missing originating application parameter. | 
| 70003 | Development Toolkit Callback not set. | 
| 70004 | Server Error cannot be identified. | 
| 70006 | The Open operation failed. |