@if not exist chgdir.exe goto skip1
chgdir
:skip1
freemem
hello
libtest
@if not exist mixprenv.exe goto skip2
mixprenv
:skip2
@if not exist ntpure.exe goto skip3
ntpure
:skip3
@if not exist nttest.exe goto skip4
nttest
:skip4
@if not exist ntprenv.exe goto skip5
ntprenv
:skip5
printenv
realvecs

