D:\>pminst Wx.pm$
Wx
MSWin32-x86-multi-thread::Wx

D:\>perl -le"print for @INC"
C:/perl/5.10.1/lib/MSWin32-x86-multi-thread
C:/perl/5.10.1/lib
C:/perl/site/5.10.1/lib/MSWin32-x86-multi-thread
C:/perl/site/5.10.1/lib
.