with Win7-64bit sysinfo task got a problem with env variables named
ProgramFiles(x86). This is wihtin nant an illegal variable name and thus
caused sysinfo to fail. The only way was to set 'failonerror=false' for
sysinfo task to get at least the other variables.
For all other env variables which might contain illegal chars (from
nant's point of view) the chars are replaced by an underscore. (see
below taken from sysinfo docu)
---- sysinfo docu
When the name of an environment variable contains characters that are
not allowed in a property name, the task will use a property name where
each of such characters is replaced with an underscore (_).
Moreover when the name of an environment variable ends with the string
"(x86)" the name of the property that is defined by this task will end
with ".x86" instead.
For example the environment variable "ProgramFiles(x86)" will become
"sys.env.ProgramFiles.x86" but an environment variable named
"Program(x86)Files" would become "sys.env.Program_x86_Files".