After SP3 a program only works in Admin account

After updating to XP Home SP3 a program has ceased to work in my user
account, although it works fine if I "RunAs" administrator, or if I am
actually using the admin account.

It used to work fine in my user restricted priveligesaccount. Now it
pops up an "encountered a problem and needs to close" message if I try
to start it in my user account whether I use a shortcut or click the
program exe file. I haven't used it since before updating XP Home to SP3
and was wondering if that update was the cause?

I know that on installation you can configure what priveliges a program
needs and what XP user accounts it will work in - admin only or all
users etc.
Can this be done POST installation? - I can't see any obvious way.

The programme is from xat.com Image Optimzer 3.51 professional.
(registered copy)
Still waiting on them for a support response.

Many thanks as always.

Win XP Home SP3, Norton Antivirus, Counterspy 2, Skype, Mailwasher Pro
AMD Sempron 3000+ Foxconn mobo

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Rev Robert M Jones, Wimborne Baptist Church, UK
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