Problem installing IO::Scalar

[dank]

perl installed without problems, but when i try to "install IO:Scalar i get this error..

IO-stringy-2.109/README
Removing previously used \.cpan\build\IO-stringy-2.109

  CPAN.pm: Going to build E/ER/ERYQ/IO-stringy-2.109.tar.gz

Checking if your kit is complete...
Looks good
Writing Makefile for IO-stringy

IBM(R) Program Maintenance Utility for Windows(R)
Version 3.50.000 Feb 13 1996
Copyright (C) IBM Corporation 1988-1995
Copyright (C) Microsoft Corp. 1988-1991
All rights reserved.

        @ C:\Perl\bin\perl.exe "-MExtUtils::Command" -e mkpath blib\lib
NMAKE :  fatal error U1081:  '@' : program not found
Stop.
  "C:\perl\nmake.exe"  -- NOT OK
Running make test
  Can't test without successful make
Running make install
  make had returned bad status, install seems impossible

cpan>

any suggestions...