Add function in cling.nsi to detect the version of Windows
Add function in cling.nsi to detect the version of Windows

Abort installation for old and unsupported versions of Windows.

karies/cling,perovic/cling,marsupial/cling,perovic/cling,karies/cling,karies/cling,perovic/cling,marsupial/cling,karies/cling,root-mirror/cling,marsupial/cling,root-mirror/cling,perovic/cling,root-mirror/cling,karies/cling,marsupial/cling,perovic/cling,root-mirror/cling,marsupial/cling,karies/cling,marsupial/cling,root-mirror/cling,root-mirror/cling