My way of doing it is as follows:
a) Create a bat file, eg E:\ADSMSW\UTIL\WS.BAT containing the webshell startup
commands,
  as follows:
   cd C:\WIN32APP\IBM\ADSM\baclient
   C:\WIN32APP\IBM\ADSM\baclient\webshell

b) Copy the following three files from the NT resource in to the
C:\WINNT\SYSTEM32 directory:
1. INSTEXNT.EXE
2. SERVMESS.DLL
3. AUTOEXNT.EXE

c) Create a bat called AUTOEXNT.BAT containing the following line:
   start e:\adsmsw\util\ws.bat

d) To make it start as a service use the following service install command:
   instexnt install /interactive

Booy and you have webshell running as a service

Regards, Giulio John Tarella

Notes:John Tarella/Italy/IBM@IBMIT
Email: tarella AT ibm DOT net
Home page:  http://supporti.italy.ibm.com/home/tarella/tar.htm
ADSM home:  http://supporti.italy.ibm.com:8080/SUPPADSM.NSF?OpenDatabase