I am attempting to install Z-Stack Version 2.5.0 in a Windows 7 PC (32-bit) and get this same error as described (e2e.ti.com/support/low_power_rf/f/158/t/90597.aspx). Apparently Z-Stack 2.5.0 does NOT support Windows 7 as claimed in the verified answer? Is there a workaround? Most all of our development PCs run Windows 7. It's been out for plenty of time now and should be supported. Need to get this working!