[ntp:questions] Meinberg NTP monitor, silly question

David J Taylor david-taylor at blueyonder.delete-this-bit.and-this-part.co.uk.invalid
Mon Dec 21 12:08:01 UTC 2009

> Hi again...
> OK, I've got everything as it should be, but...
> I see in the companion registry entry, for the 'serenum' key, that the
> ImagePath type is indeed REG_EXPAND_SZ, where as in the 'serial' key,
> the ImagePath is just REG_SZ.
> I've tried all sorts in there, resulting in either no working com ports
> at all, or just the standard MS driver being loaded.  I cannot find a
> way to change the value type from REG_SZ to REG_EXPAND_SZ.
> I checked the file sizes, and they all correspond you your 32 bit file
> sizes just fine.
> I remember Dave Hart saying something about this a long time back to
> someone else, and the need to enter a long string of hex digits for the
> ImagePath registry entry.  But I can't find that information any more.
> For now, it's still defaulting to usermode timestamps.   Any other
> idea's?
> Regards.
> Dave Baxter.

Well, I just checked on my actual XP system (I had checked on a different 
XP system before), and the string is a plain REG_SZ, not the Expand 


  ImagePath REG_SZ => system32\drivers\serialpps.sys

Dave Hart's install and uninstall .BAT files just use REG_SZ, so I don't 
think that's the issue.

Here's an exported REG_EXPAND_SZ string - enter into a file  serial.reg 
and double-click:

Windows Registry Editor Version 5.00


but I don't think it will alter anything.

Perhaps you need to open the protection on serialpps.sys?

As the serialpps.sys is an unsigned driver, I wonder whether there is an 
option in XP not to accept unsigned drivers?  Anything in the event log 
when XP boots - before you log in?  I don't think it helps a lot, but 
there's this page:



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