LIB contains invalid OMF record, type 0x21(possibly COFF)

   I am using the Borland Compiler V5.5 to compile a program which
uses some pkiapi library. How do I set right the error given below. I
tried working with COFF2OMF with no results. PLease suggest a way to
run this program

D:\Borland\BCC55\Bin>bcc32 check.obj pkiapi.lib
Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland
Turbo Incremental Link 5.00 Copyright (c) 1997, 2000 Borland
Error: 'D:\BORLAND\BCC55\BIN\PKIAPI.LIB' contains invalid OMF record,
type 0x21
(possibly COFF)

Thank you