Server 2003 SP2 - failing

Anyone have an idea what might cause this problem?  Here is a copy/paste from the setupapi.log

#E359 An unsigned, incorrectly signed, or Authenticode(tm) signed file "PathToMyFiles\i386\lmmib2.dl_" blocked (server install). Error 87: The parameter is incorrect.
#W187 Install failed, attempting to restore original files.
#-188 Restoring File: "C:\WINDOWS\system32\inetsrv\iisadmpwd\iispwchg.dll" from "C:\WINDOWS\Temp\OLD66.tmp".
#E243 Exemption obtained for protected system file "C:\WINDOWS\system32\inetsrv\iisadmpwd\iispwchg.dll".

Thanks in advance.