The software application published by Aldec that includes the feature called `RIVIERA_VHPI_SUPPORT` is **Riviera-PRO**.
`RIVIERA_VHPI_SUPPORT` refers to support for the VHPI (VHDL Procedural Interface) standard, which allows for integration of VHDL simulation with external procedural languages like C or C++. This support enables users to create more complex simulations by allowing external programs to interact with the VHDL simulation