Disable cygwin temporarily -

i want disable cygwin temporarily without uninstalling (e.g. duration of batch script).

i hoping there simple way, e.g. environment variable like

$> set cygwin=off 

or internal cygwin command like

$> cygset off 

right using quick , dirty solution invalidates cygwin directory in windows path with

set path=%path:cygwin=% 

of course corrupt other pathes have cygwin in it.