RSH: remuser too long error when rsh is executed from IIS
 

I am trying to RSH from IIS to a Unix machine but am getting an error of:

<servername> remuser too long
rsh: can't establish connection

I can RSH from the web server directly from the command line to the Unix machine but when I try to RSH through my web application I get the error message.

I read on one forum that the username for rsh cannot be longer than 16 characters. I changed the account used to launch my web application from the IIS default of IUSR_<servername> to a much shorter username but that didn't do the trick.

Any suggestions are greatly appreciated.