Is it dgbhelp.dll or dbghelp.dll? Somehow, I suppose it's the last.
If it's a Windows file you can try two things:
1. Run sfc /scannow to check for missing files
2. Copy it yourself from your Windows installation cd, as described in http://support.microsoft.com/kb/888017
<span id="INSERTION_MARKER"> <span id="INSERTION_MARKER"> <span id="INSERTION_MARKER"> keep getting the msg dgbhelp dll missing on lots of things like picture viewer and nokia ovi suite ,reinstall does nothing , any ideas ,