FULL PRODUCT VERSION :
java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601] 64 bit Windows 7 Professional

A DESCRIPTION OF THE PROBLEM :
If I install 32 bit java and then install 64 bit (since I have both 64 bit and 32 bit IE), and then open up the Java Control Panel/Update and click on Update Now, I get an error box:

java.lang.RuntimeException: Can not launch update check. jucheck.exe dosn't exist at: C:\Program Files\Common Files\Java\Java Update\jucheck.exe

(note the spelling of doesn't)

jucheck does exist at C:\Program Files (x86)\Common Files\Java\Java Update but no Java folder even exists at C:\Program Files\Common Files\.



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
On Win 7 Professional 64 bit, uninstall all java.
Install 32 bit java using JavaSetup7u7.exe. Note that control panel says that Java 32-bit can be configured. Note that Update Now works in the Control Panel applet.
Install 64 bit java using jre-7u7-windows-x64.exe. Note that control panel no longer has the 32 bit attached to the title of the applet. Note that Update Now no longer works.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect jucheck.exe to run
ACTUAL -
java.lang.RuntimeException: Can not launch update check. jucheck.exe dosn't exist at: C:\Program Files\Common Files\Java\Java Update\jucheck.exe

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.RuntimeException: Can not launch update check. jucheck.exe dosn't exist at: C:\Program Files\Common Files\Java\Java Update\jucheck.exe
at com.sun.deploy.panel.WinUpdatePanel.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)


REPRODUCIBILITY :
This bug can be reproduced always.