16-32 Bit Interoperability

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Practically all OLE Controls are InProcess Controls instead of Local Server Controls. This means that most controls are not published as executables, but as DLLs, though their names need not have the suffix in DLL, but often have the suffix OCX. Due to the architecture of DLLs (which are inserted into the process space of a running application) you cannot mix different architectures. Because USoft Developer is a native 32-bit application, you cannot use 16-bit OLE Controls. This is a general and technical restriction, and has nothing to do with the USoft technology.