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Interposer 1.1.0 Release Notes

Downloads​

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What's Changed​

Legacy DirectInput Fix​

The dinput.dll that ships with Windows has a long-standing bug that overflows while enumerating HID devices on some machines, which can hang or crash DirectInput 3/7 games on startup. DirectInput 8 has a nearly identical API, so the new FixLegacyDeviceEnumeration option serves those legacy games from DirectInput 8 instead:

DirectInput:
  FixLegacyDeviceEnumeration: true

To reach a game that imports dinput.dll directly (most titles from this era, and often the only proxyable DLL they import) install the Interposer using the dinput.dll load method.

DirectInput Device Filtering​

A new DeviceFilter controls which devices a game is allowed to see when it enumerates them. It applies both to games bridged by the fix above and to games that use DirectInput 8 natively:

DirectInput:
  FixLegacyDeviceEnumeration: true
  DeviceFilter:
    Enabled: true
    Classes: ['Mouse', 'Keyboard']
    Names:   ['^Wireless Controller$', 'X-?Box']

Like the network adapter filter, this is an allow-list: a device is kept if it matches any configured filter. Classes accepts names like Mouse, Keyboard, Joystick, and Gamepad (plus DirectInput 8-only classes such as Driving and Flight); Names is a case-insensitive regex matched against each device's instance and product name.

Filtering down to just Mouse and Keyboard can also make some games enumerate devices several times faster, because a synthesized pair is returned without running a real enumeration.

Set Logging.DirectInput: true and Logging.Level: Debug to see every device an enumeration turned up and why each was kept or hidden. See the DirectInput documentation for the full reference.

Mouse Transform Plugin​

A new bundled LANCommander.Interposer.Plugin.Mouse plugin can rewrite the system mouse's buffered input stream through legacy versions of DirectInput. This should fix mouse input for some games that experience inaccurate tracking, especially with mice that have a high polling rate. This plugin was written to fix mouse inputs with games built using early versions of the LithTech game engine.

Like the other bundled plugins, it ships in Plugins\ but is not enabled until you move it into .interposer\Plugins\. See the Mouse Plugin documentation to get started.

Log Levels​

Logging gains a Level key that controls verbosity within whichever subsystems are already enabled:

Logging:
  Level: Info   # Info | Debug | Trace

A new Logging.DirectInput flag gates the DirectInput bridge activity described above. Debug and Trace log levels can end up creating large log files, so it's recommended to only use this for authoring and debugging purposes.

Unified Release Package​

The proxy variants are now a single unified binary. version.dll, dinput8.dll, dinput.dll, and the .asi are byte-identical copies of one signed LANCommander.Interposer.dll. Releases will now be provided as a LANCommander-ready LCX import package and manual installation ZIP file. Both contains builds for x86 and 64-bit flavors. Additionally, all binaries are now digitally signed; this should hopefully prevent the Interposer from being improperly flagged by antivirus software.