Windows 7: Can account privileges prevent installation?

I'm having a problem trying to run an x86 Java app as a standard user. It works fine if I log in as an administrator, but shows a Java error message (Java Virtual Machine could not find the main class...) if I'm just a standard user.
I have both 32 and 64-bit JRE installed on my 64-bit machine. I suspect it's not a permissions issue because in Windows Explorer i see jawaw listed as file type "Jar executable file" when I'm an administrator (which is when it runs fine), and only "Jar" when I'm a standard user. Can you help me?

Give this a try. In the standard account, right click on the java appl and then run as administrator. Might work.

Sorry, in that 2nd paragraph above I meant to say that I DO suspect it's a permissions issue. (Guess I out to preview my messages...)

The app has a .jar extension so that's not offered as an option.

Here is our tutorial on Permissions,
Sharing and Permissions

Thanks, but I shared both the app and Java folders and the problem persists.