A patch to OpenVanilla's Info.plist to allow CrossOver to use the input method toolset. This is actually a bug of CrossOver – it cannot activate any input method with no input modes. This works around the bug. This is for OpenVanilla 1.0.6.

OpenVanilla-Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>BuildMachineOSBuild</key>
    <string>12C60</string>
    <key>CFBundleDevelopmentRegion</key>
    <string>en</string>
    <key>CFBundleExecutable</key>
    <string>OpenVanilla</string>
    <key>CFBundleIconFile</key>
    <string>OpenVanilla-App.icns</string>
    <key>CFBundleIdentifier</key>
    <string>org.openvanilla.inputmethod.OpenVanilla</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>OpenVanilla</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>1.0.6</string>
    <key>CFBundleSignature</key>
    <string>OPVN</string>
    <key>CFBundleVersion</key>
    <string>3149</string>
    <key>DTCompiler</key>
    <string></string>
    <key>DTPlatformBuild</key>
    <string>4G2008a</string>
    <key>DTPlatformVersion</key>
    <string>GM</string>
    <key>DTSDKBuild</key>
    <string>12C37</string>
    <key>DTSDKName</key>
    <string>macosx10.8</string>
    <key>DTXcode</key>
    <string>0452</string>
    <key>DTXcodeBuild</key>
    <string>4G2008a</string>
    <key>InputMethodConnectionName</key>
    <string>OpenVanilla_1_Connection</string>
    <key>InputMethodServerControllerClass</key>
    <string>OVInputMethodController</string>
    <key>InputMethodServerDelegateClass</key>
    <string>OVInputMethodController</string>
    <key>InputMethodServerPreferencesWindowControllerClass</key>
    <string>OVPreferencesWindowController</string>
    <key>LSHasLocalizedDisplayName</key>
    <false/>
    <key>LSMinimumSystemVersion</key>
    <string>10.6</string>
    <key>LSUIElement</key>
    <true/>
    <key>NSHumanReadableCopyright</key>
    <string>Copyright © 2004-2012 The OpenVanilla Project.</string>
    <key>NSMainNibFile</key>
    <string>MainMenu</string>
    <key>NSPrincipalClass</key>
    <string>NSApplication</string>
    <key>TISInputSourceID</key>
    <string>org.openvanilla.inputmethod.OpenVanilla</string>
    <key>TISIntendedLanguage</key>
    <string>zh-Hant</string>
    <key>tsInputMethodCharacterRepertoireKey</key>
    <array>
        <string>Hant</string>
        <string>Hans</string>
    </array>
    <key>tsInputMethodIconFileKey</key>
    <string>OpenVanilla-InputMenu.tiff</string>

    <!-- Begin of CrossOver patch -->
    <key>ComponentInputModeDict</key>
    <dict>
        <key>tsInputModeListKey</key>
        <dict>
            <key>org.openvanilla.inputmethod.OpenVanilla.Default</key>
            <dict>
                <key>tsInputModeAlternateMenuIconFileKey</key>
                <string>OpenVanilla-InputMenu.tiff</string>
                <key>tsInputModeDefaultStateKey</key>
                <true/>
                <key>tsInputModeIsVisibleKey</key>
                <true/>
                <key>tsInputModeMenuIconFileKey</key>
                <string>OpenVanilla-InputMenu.tiff</string>
                <key>tsInputModePaletteIconFileKey</key>
                <string>OpenVanilla-InputMenu.tiff</string>
                <key>tsInputModePrimaryInScriptKey</key>
                <true/>
                <key>tsInputModeScriptKey</key>
                <string>smUnicodeScript</string>
            </dict>
        </dict>
        <key>tsVisibleInputModeOrderedArrayKey</key>
        <array>
            <string>org.openvanilla.inputmethod.OpenVanilla.Default</string>
        </array>
    </dict> 
    <!-- End of CrossOver patch -->
</dict>
</plist>