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[in] An optional client-side proxy host to be used with a request. This value should be NULL if not relevant.
Note: This function will attempt to contact LAC directly if no proxy is specified, so if you have a firewall or router that redirects traffic, ensure your configuration handles this correctly.
nProxyPort
[in] An optional client-side proxy port number to be used with a request. This value should be 0 if not relevant.
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On failure, this function returns an error code in the format described in Return SOAP API return codes.