Windows doesn't have export so I'm not sure what you're doing. Are you using the perl with Git for Windows and Git bash?

I use Strawberry Perl and set my PERL5LIB in Control Panel => System => Advanced System Settings => Advanced => Environment Variables => User Variables. It is:

C:\Users\Vinsworldcom\perl5\lib\perl
[download]

If you want to set it only temporarily in a PowerShell (no one uses CMD.exe anymore these days):

PS VinsWorldcom ~ > $env:PERL5LIB="C:\Users\VinsWorldcom\perl5\lib\per
+l5"
PS VinsWorldcom ~ > $env:PERL5LIB
C:\Users\VinsWorldcom\perl5\lib\perl5
[download]

I think you may be messing up syntax. Windows uses colon (:) for drive letters and semicolon (;) for path separators. Bash uses colon (:) for path separators and uses semicolon (;) as command separators. Seems you're trying to use Windows syntax in Bash paths. To set PERL5LIB it in Git bash, don't worry about the drive:

export PERL5LIB=/Users/VinsWorldcom/perl5/lib/perl5
[download]

or if you really need the drive letter, I think the following syntax works:

export PERL5LIB=/C/Users/VinsWorldcom/perl5/lib/perl5
[download]

Cheers.