Windows 2003 - User Logins vs Software

We have recently installed a Windows 2003 domain server. Our workstations
are running Windows XP Professional. The individual users do not have rights
to install programs but have access to common areas on the server. All
documents are saved to the server; however, because we are running various
software the workstations may have various software packages installed.

Some of the software will not work unless the user has administrative rights
to the server. I have tried several ways to install in the software. Most
recently, I resorted to the following steps. Sometimes it works but not
always:

1. Set the user to Administrator privileges
2. Install software under his/her username with the Administrator permissions
3. I test the software and is working properly at this phase. I cannot
install the software using their username unless they have administrative
access to the machine. I've this test was after I realized when I install
the software as an administrator, the software will not work for them with
their user rights.
4. After all is checked and running properly, I reset their user rights to
the company user profile.

The result is the software will not work. I have two software packages that
will not work and one Vinyl cutter (printer) that will not work unless the
workstation is logged on with administrative access. We have 14 workstations
and three laptops running off this server. We cannot keep giving the users
administrative access because the software doesn't work. Can you please
advise what I can do to fix the problem and still maintain network security.

Thankyou,
--
Marilyne