OperaORB provides very simple API for distributed computing.You can send messages to local/remote objects in transparent way. OperaORB runs on not only well-known HTTP, but also SQTP, a Squeak specificbinary transport protocol. SQTP is extremely fast in bulky objects sending,but it loses interoperability with other SOAPs (normally running ontext-based HTTP). *SQTP is not included in SAR version of SoapCore. You have to installall-package-version of SoapCore from:http://www.mars.dti.ne.jp/~umejava/smalltalk/soapOpera/index.html