Sunpkcs11 in applet force browser to use 32 bit jre

I am using sunpkcs11 in my applet for reading smartcard,sunpkcs11.jar is only available in 32 bit jvm , so if a borwser has latest jdk and it has 64 bit version then my applet will fail , please advice are there any parameters in applet which will force borwser to download 32 bit version jre for running my applet?

Thanks Andrew Thompson for your reply.
The problem is, the end-user will have both 32-bit and 64-bit JREs. They need 32-bit JRE for other applications and our application has to use 64-bit JRE. The target of desktop shortcut (created during installation of application) points to “C:\Windows\SysWOW64\javaws.exe”. If this target is changed to “C:\Windows\System32\javaws.exe”, the application use 64-JRE . The target can be manually changed by right click desktop shortcut icon-> Properties->select Shortcut tab and change the target.
Is there any way to change this target of desktop shortcut programmatically while installing the application?
Regards,
Kamal.

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import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.geometry.ColorCube;
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import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
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import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;
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import javax.vecmath.*;
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# A cylinder
Shape {
appearance Appearance {
material Material { }
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