document: Component support in PLT scheme PLT Scheme -LRB- DrScheme and MzScheme -RRB- supports the Component Object Model -LRB- COM -RRB- standard with two pieces of software . The first piece is MzCOM , a COM class that makes a Scheme evaluator available to COM clients . With MzCOM , programmers can embed Scheme code in programs written in mainstream languages such as C++ or Visual BASIC . Some applications can also be used as MzCOM clients . The other piece of component-support software is MysterX , which makes COM classes available to PLT Scheme programs . When needed , MysterX uses a programmable Web browser to display COM objects . We describe the technical issues encountered in building these two systems and sketch some applications
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