Type "asadmin" in prompt , it says "command syntax error"

I just met such problem. In Windows Server 2003 OS, i type asadmin in the command prompt windows, it not works, and tell me "Command syntax error". Then i uninstall the AS and reinstall it , but the prob still exists, how can i do to solve it. THanks!
[258 byte] By [BiBiCall] at [2007-11-26 7:36:56]
# 1

Check your path with <set> command on windows. You have to make sure your path includes: <SJSAS_ROOT\bin>. While installing the appserver you normally see a checkbox asking if you want this added to your path - use this option otherwise you will have to add this path manually any time you want to use asadmin.

Sultal at 2007-7-6 19:37:45 > top of Java-index,Application & Integration Servers,Application Servers...
# 2
Also check your PATH variable for any garbage entries (usually appended at the very end of the PATH) - sometimes it is corrupted PATH that interferes with the normal functioning of asadmin command.
Snjezana at 2007-7-6 19:37:45 > top of Java-index,Application & Integration Servers,Application Servers...