Before you begin writing DLLs, make sure the Embed INCLUDE directory is part of the list of include directories that your compiler searches. The file specification is Embed-install-directory\VSDK\INCLUDE.
You can write DLLs in any language, provided the language has the following capabilities:
•64-bit floating point array parameters
•Pointers to 16-bit integers
•_stdcall calling conventions (default for Microsoft Fortran and Delphi Pascal)
Example DLLs written in C, Fortran, and Pascal reside in subdirectories under Embed-install-directory\VSDK.