Here is my new code:
$Source = @lserver+'\netlogon\shortcuts\Psynet(New Server).lnk'
$w2kDesktop = 'C:\'
$w9xDesktop = 'C:\'
if exist ($w2kDesktop)
copy $source $w2kDesktop
? "Windows 2000"
? $source $w2kDesktop
? 'Error '+@ERROR+' - '+@SERROR
else
copy $ Source $w9xDesktop
? "Windows 9x"
endif

Here is the output with error:
Windows 2000
\\server\netlogon\shortcuts\Psynet(New Server).lnkC:\
Error 2 - The system cannot find the file specified.