All applications that use Data Port Component will directly or indirectly link with the dplib.dll file. These links are generally hidden in class libraries that provide higher-level abstractions to the data copying process. To correctly deploy an application that consumes Data Port Component, you will have to consider the location of the dplib.dll file, so that it correctly links with the support libraries.

.NET Framework
The dll functions are linked through the DllImport attribute.

Visual Basic 6
The dll functions are linked through Declare ... Lib statements.

To make sure the dll is always accessible, place it either on your application's directory or in the Windows\System32 directory.

Support / Knowledge Base / Data Port Component / About dplib.dll