Checking if your kit is complete...
Looks good
Writing Makefile for Apache::AuthenRadius

Microsoft (R) Program Maintenance Utility Version 7.10.3077
Copyright (C) Microsoft Corporation.  All rights reserved.

cp AuthenRadius.pm blib\lib\Apache\AuthenRadius.pm

Microsoft (R) Program Maintenance Utility Version 7.10.3077
Copyright (C) Microsoft Corporation.  All rights reserved.

	C:\cpanrun\build\5-10-0\bin\perl.exe "-MExtUtils::Command::MM" "-e" "test_harness(1, 'blib\lib', 'blib\arch')" t/*.t
t/00use...........1..1
Can't locate mod_perl.pm in @INC (@INC contains: C:\cpanrun\depot\main\contrib-patched\perl\CPAN\src\Apache-AuthenRadius\blib\lib C:\cpanrun\depot\main\contrib-patched\perl\CPAN\src\Apache-AuthenRadius\blib\arch C:/cpanrun/build/5-10-0/site/lib C:/cpanrun/build/5-10-0/lib . C:/cpanrun/build/5-10-0/site/lib C:/cpanrun/build/5-10-0/lib .) at C:\cpanrun\depot\main\contrib-patched\perl\CPAN\src\Apache-AuthenRadius\blib\lib/Apache/AuthenRadius.pm line 23.
BEGIN failed--compilation aborted at C:\cpanrun\depot\main\contrib-patched\perl\CPAN\src\Apache-AuthenRadius\blib\lib/Apache/AuthenRadius.pm line 23.
Compilation failed in require at t/00use.t line 11.
BEGIN failed--compilation aborted at t/00use.t line 11.
dubious
	Test returned status 2 (wstat 512, 0x200)
DIED. FAILED test 1
	Failed 1/1 tests, 0.00% okay
t/pod-coverage....1..0 # Skip Test::Pod::Coverage 1.04 required for testing POD coverage
skipped
        all skipped: Test::Pod::Coverage 1.04 required for testing POD coverage
t/pod.............1..1
ok 1 - blib\lib\Apache\AuthenRadius.pm
ok
Failed Test Stat Wstat Total Fail  List of Failed
-------------------------------------------------------------------------------
t/00use.t      2   512     1    2  1
1 test skipped.
Failed 1/3 test scripts. 1/2 subtests failed.
Files=3, Tests=2,  0 wallclock secs ( 0.00 cusr +  0.00 csys =  0.00 CPU)
Failed 1/3 test programs. 1/2 subtests failed.
NMAKE : fatal error U1077: 'C:\cpanrun\build\5-10-0\bin\perl.exe' : return code '0xff'
Stop.