1003
The compression or decompression engine returned an error.
If you are uncompressing data, the data may be corrupted, or it has been altered in some way from the time that it was obtained by the Compress method. Verify that the compressed data you are getting from the Compress method is exactly the same as the compressed data you are passing to the Uncompress method (bit for bit).
If you are compressing data, this should not happen (but is a possibility). Contact Xceed Software if it does. You may be passing an invalid type data type to the Compress method.