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When running the ProEssentials setup, the setup program installs the ProEssentials DLLs into system32 and SysWow64. It also installs the ProEssentials VCL interfaces into C:\ProEssentials10\Delphi. Your relevant files are:
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PEGRP64H.DLL
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ProEssentials x64 64 bit DLL
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PEGRP32H.DLL
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ProEssentials x86 32 bit DLL
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GIGASOFT.DPROJ
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Delphi Project
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GIGASOFT.DPK
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Delphi Package
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PEGRPAPI.PAS
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ProEssentials Constants and Declarations
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PEGVCL.PAS
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Graph Object
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PESGVCL.PAS
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Scientific Graph Object
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PE3DVCL.PAS
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3D Scientific Graph Object
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PEPSVCL.PAS
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Polar Object
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PEPCVCL.PAS
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Pie Chart Object
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After setup completes, use the Delphi menus File / Close All and then File / Open to open the file "GIGASOFT.DPROJ" found in the C:\ProEssentials10\Delphi directory. You will see a project pane as shown to the left.
Activate the 64 bit target and select Build, and then Activate the 32 bit target, and select Build.
After the above two steps, Right click near the top "gigasoft.bpl" and select Install. The PAS interfaces are compiled and ProEssentials components installed into the "Additional" tab. We provide the PAS source incase you want to tinker with the interfaces.

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