Putty (plink) causes zombie process while executing a command

["Martin Burger" <m@rtin-burger.de>]

Hello,

I'm trying to execute a command on my Sarge box using plink (Putty) on
Windows XP. E.g.: plink -A -2 -ssh auser@host.some.where ls -l

But instead of listing my home directory in my dos box, the command
hangs. If I check the processes on Sarge, I see a zombie process "[ls]
<defunct>". After killing the process on Sarge and executing the
command in the dos box a second time, it lists my home dir.

So, a few times the command works, but in most cases there is a zombie
process.

Any idea why plink causes the zombie processes? How can I debug that
problem?

Regards, Martin