Reader X plugin integration with Windows Explorer 8 and Protected Mode

Hello
I am viewing pdfs with Reader 10.1.3 within ie8 on XP
I have a Reader plug-in (WordFinder.api) that works ok with Protected Mode disabled.
Unfortunately I have customers that require Protected Mode enabled and this stops the plugin working.
Within my code, calling DdeConnect returns 0 (fail)
I have populated and enabled the ProtectedModeWhitelistConfig.txt but cannot account for the final access error for DINPUTWINMM
Here is the log...
[10:19/13:34:19] Adobe Reader Protected Mode Logging Initiated
[10:19/13:34:19] Found custom policy file: C:\Program Files\Adobe\Reader 10.0\Reader\ProtectedModeWhitelistConfig.txt
[10:19/13:34:19] Adding custom policy: PROCESS_ALL_EXEC = C:\Program Files\Adobe\Reader 10.0\Reader\plug_ins\WordFinder.api
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_LOCAL_MACHINE\SOFTWARE\Adobe*
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joy stick\Winmm*
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaProperties\PrivateProperties\Joystic k\Winmm*
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_LOCAL_MACHINE\Software\Microsoft\Tracing
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_CURRENT_USER\SOFTWARE\Adobe*
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication*
[10:19/13:34:19] Adding custom policy: REG_ALLOW_ANY = HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings*
[10:19/13:34:19] Adding custom policy: EVENTS_ALLOW_ANY = MSFT.VSA*
[10:19/13:34:19] Adding custom policy: EVENTS_ALLOW_ANY = _fCanRegisterWithShellService
[10:19/13:34:19] Adding custom policy: EVENTS_ALLOW_ANY = DINPUTWINMM
[10:19/13:34:19] Adding custom policy: MUTANT_ALLOW_ANY = \BaseNamedObjects\*RasPBFile*
[10:19/13:34:23] CreateEvent: STATUS_ACCESS_DENIED
[10:19/13:34:23] name: DINPUTWINMM
Can I add DINPUTWINMM? and if so what is the syntax.
Thankyou
Nick

Hi Fernando,
Here's a statement that hopefully helps or at least solves your mystery:
While Protected Mode can be disabled for PDFs viewed with the product, Adobe continues to protect you when 3rd party software invokes a Reader process; that is, Protected Mode sandboxing cannot be disabled for shell extensions. For example, when you use Windows Explorer to preview a PDF in the Preview Pane, it starts a Reader process to display the preview. In such cases, Task Manager shows that two AcroRd32.exe processes spawn and that the operation is occurring with Protected Mode enabled.
Ben

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Reader X integration with Windows Explorer and protected mode

Hello all.
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Here's a statement that hopefully helps or at least solves your mystery:
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According to your post, my understanding is that you got “Your client does not support opening this list with Windows Explorer” error.
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