[dxsdk-d3dx] D3DXEffect not link on compile ?

[TokyoSU]

Describe the bug
When using dxsdk-d3dx, the effect library for D3DX9 seem to not include symbol, i get unresolved external symbol with _IID_ID3DXEffectStateManager and _IID_ID3DXEffect.

Environment

• OS: Windows 11
• Compiler: MSVC (Visual Studio 2026 Community Edition)

To Reproduce
Steps to reproduce the behavior:

1. ./vcpkg install dxsdk-d3dx:x86-windows
2. Query the IID_ID3DXEffect from a LPD3DXBASEFFECT.
3. Build it and see the linker error.

Expected behavior
Should include D3DXEffect.

Failure logs

Additional context
Already including <dxsdk-d3dx/d3dx9.h> and vcpkg already include the .lib by default.