The first few codes are system error codes. Have a looks at the link below to find out what each code means.

System error codes at MS website

The negative error codes are com errors I guess. There is a UDF to translate the com error to system error codes.
Once these error codes are translated they can be found in the system error codes list above.

UDF Library fnCOMErr() - Converts COM error codes into Win32 API error codes

Edited by Mart (2007-11-14 04:26 PM)
Edit Reason: typo

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