Do Not Know What This File Is

Has anyone seen this error message (BELOW) or the file it speaks of ipdll.dll? When Terminalling to a Win2K server, it opens when my logon script runs. However I went and looked for it’s association and it’s purpose and it’s one of those that can’t be found. If anyone could help. Thanks

“Could Not Load C:\Winnt\System32\ipdll.dll”
OK