If you are using sysprep for your images, you can set it up to install the AClient/DAgent to install as a run once type option directly after the "mini-setup".

Otherwise you can use a login script or group policy.

I didn't know if this would work or not. The 10.228 etc. is the name of the DS server.

Command1="\\10.228.4.10\eXpress\Agents\AClient\altiris-aclient-6.9.164.X86.exe \\10.228.4.10\eXpress\Agents\AClient\aclient.inp -install"

Only thing that may or may not be a problem (depending on how the rights are set up on your express share) is whether or not the command will be able to connect to the server.  I would suggest creating a batch file that would be in the run once that would authenticate with a service account that has no other rights other than "READ" to the share.  The code would be something like this:

net use \\10.228.4.10\express /user:DOMAIN\ALTIRISSERVICEACCOUNT password
"\\10.228.4.10\express\Agents\Aclient\altiris-aclient-6.9.164.x86.exe \\10.228.4.10\express\agents\aclient\aclient.inp -install"
net use \\10.228.4.10\express /delete

When I first log in I get an open file security warning about the client being an unknown publisher and I have to hit the run button to install. How do I get rid of that. I did use your script with my username.

This is probably due to the server/network not being a trusted source.  If you copy the file locally you may get better results.

Modify your bat file:

net use \\10.228.4.10\express /user:DOMAIN\ALTIRISSERVICEACCOUNT password
copy "\\10.228.4.10\express\agents\aclient\altiris-aclient-6.9.164.x86.exe" c:\temp\*.*
copy "\\10.228.4.10\express\agents\aclient\aclient.inp" c:\temp\*.*
c:\temp\altiris-aclient-6.9.164.x86.exe c:\temp\aclient.inp -install
net use \\10.228.4.10\express /delete
del c:\temp\altiris-aclient-6.9.164.x86.exe
del c:\temp\aclient.inp

It copies the aclient to the local computer but not the install of the client.
Do I create an actual bat file and how would I make that work? Obviously sysprep would have to make a call to it?

Create the .BAT or .CMD file with the script to copy and install the AClient files.  Place the file in your image (preferably in the c:\temp location).  Then modify your sysprep.inf file to reference the .BAT or .CMD file that you created in the [GuiRunOnce] area.

The reason I would have you copy the install files rather than include them in the image would be in case you upgrade or update your Altiris installation you would not need to redo your image just for that.

This is my syntax in sysprep to make a call  to the aclient.bat

[GuiRunOnce]

 Command0=c:\temp\aclient.bat

[Networking]
    InstallDefaultComponents=Yes

[sysprepcleanup]

this is my syntax of the bat file
net use \\10.228.4.10\express /user:nccvt\gary 0ffice
copy "\\10.228.4.10\express\agents\aclient\altiris-aclient-6.9.164.x86.exe" c:\temp\*.*
copy "\\10.228.4.10\express\agents\aclient\aclient.inp" c:\temp\*.*
c:\temp\altiris-aclient-6.9.164.x86.exe c:\temp\aclient.inp -install
net use \\10.228.4.10\express /delete
del c:\temp\altiris-aclient-6.9.164.x86.exe
del c:\temp\aclient.inp
There is a aclient.cfg in the C drive but nothing else.
Any ideas? Maybe it's not really running the command?

Did you check to see if c:\program files\altiris\aclient exists?

 I have removed the GUID from the agent and packed the agent into an older image, this worked well.

Since I have resorted to installing it as part of the guirunonce section of sysprep, this is also functioning well.

Macpiano's sysprep and aclient.bat are similar to what I use.

Give this link a look.  It may help.

http://www.symantec.com/connect/blogs/installing-aclient-part-sysprep