Need to deploy both Visio and Project 2010 by GPO

Question

I'm looking for a way to deploy Visio and Project 2010 to selected users without SCCM.
I tried a logon script based on the one Microsoft posted as a sample in Technet and it worked for some users, but is unreliable.  When the users need both Visio and Project, it would error out because it says 2 setup files can't run at the same time.
 So, I set a GPO for logon scripts to run synchronously and it worked for some users, but others would get a black screen at logon that would hang forever.  Seems to me this is UAC interference with no UAC prompt being popped up.  When the script
was disabled, they could log on normally.
I thought of startup scripts, but that does not show the user that the software is installing, so they think their computer is stuck booting.
What are solutions?

Answer 1

This is the login script I'm using for Visio 2010.  I just substitute the work Visio for Project to make a login script for Visio.  
It works but the part where it is supposed to recognize that the product is already installed and not install again doesn't work.  can you see an error or other reason why?
setlocal
REM *********************************************************************
REM Environment customization begins here. Modify variables below.
REM *********************************************************************
REM Get ProductName from the Office product's core Setup.xml file, and then add "office14." as a prefix. 
set ProductName=Office14.Visio
REM Set DeployServer to a network-accessible location containing the Office source files.
set DeployServer=\\server01\userapps\VisioPro2010
REM Set ConfigFile to the configuration file to be used for deployment (required)
set ConfigFile=\\server01\userapps\VisioPro2010\Visio.WW\config.xml
REM Set LogLocation to a central directory to collect log files.
set LogLocation=\\server01\userapps\VisioPro2010\logs
REM *********************************************************************
REM Deployment code begins here. Do not modify anything below this line.
REM *********************************************************************
IF NOT "%ProgramFiles(x86)%"=="" (goto ARP64) else (goto ARP86)
REM Operating system is X64. Check for 32 bit Office in emulated Wow6432 uninstall key
:ARP64
reg query HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432NODE\Microsoft\Windows\CurrentVersion\Uninstall\%ProductName%
if NOT %errorlevel%==1 (goto End)
REM Check for 32 and 64 bit versions of Office 2010 in regular uninstall key.(Office 64bit would also appear here on a 64bit OS) 
:ARP86
reg query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\%ProductName%
if %errorlevel%==1 (goto DeployOffice) else (goto End)
REM If 1 returned, the product was not found. Run setup here.
:DeployOffice
start /wait %DeployServer%\setup.exe /config %ConfigFile%
echo %date% %time% Setup ended with error code %errorlevel%. >> %LogLocation%\%computername%.txt
REM If 0 or other was returned, the product was found or another error occurred. Do nothing.
:End
Endlocal