Problem w/ DOS App

[jma]

We have an application that we run on a w2k server that runs Term Serv. remote office connect up, run this app off of a networked drive that comes from a different server..This scenario worked fine until last time I did w2k patches...now it doesn't work...goes thru two menu systems and dumps out...I have pasted a little piece of the log file below...any ideas / input etc?

5965 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_CLOSE G:\AMSRATE\MMS\MMSMENU.BAT SUCCESS
5966 10:42:50 AM NTVDM.EXE:1828 FSCTL_IS_VOLUME_MOUNTED G:\AMSRATE\MMS INVALID PARAMETER
5967 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_CREATE G:\ SUCCESS Attributes: Any Options: Open Directory
5968 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_QUERY_INFORMATION G:\ SUCCESS FileNameInformation
5969 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_QUERY_VOLUME_INFORMATION G:\ SUCCESS FileFsAttributeInformation
5970 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_CLEANUP G:\ SUCCESS
5971 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_CLOSE G:\ SUCCESS
5972 10:42:50 AM NTVDM.EXE:1828 FSCTL_IS_VOLUME_MOUNTED G:\AMSRATE\MMS INVALID PARAMETER
5973 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_CREATE G:\AMSRATE\MMS SUCCESS Attributes: Any Options: Open Directory
5974 10:42:50 AM NTVDM.EXE:1828 IRP_MJ_DIRECTORY_CONTROL G:\AMSRATE\MMS SUCCESS FileBothDirectoryInformation: CHKLAN.EXE
Thanks...