Java Update Failure trying to update to JDK1.6.0_38

CF9 Windows SBS2008 64bit. Downloaded and installed JDK 1.6.0_38 into C:\Program Files\Java\jdk1.6.0_38. Updated C:\ColdFusion9\runtime\bin\jvm.config to:

java.home=C:/Program Files/Java/jdk1.6.0_38/jre

save and re-started cf9 => failed to restart and runtime log says:

Error: no known VMs. (check for corrupt jvm.cfg file)
Error: no known VMs. (check for corrupt jvm.cfg file)
Error loading: C:/Program Files/Java/jdk1.6.0_38/jre\bin\server\jvm.dll

The address is correct but where did those backward-leaning slashes come from and how do I correct it?

You can try just using backslashes in the JVM config.

Also, are you sure you have the 64-bit version of CF installed?

java -version
java version "1.6.0_38"
Java(TM) SE Runtime Environment (build 1.6.0_38_b05)
Java HotSpot(TM) 64-Bit Server VM (build 20.13-b02, mixed mode)

I'll test the backslash idea when the server is free.

ASIDE: On my xp desktop, java -version works but there is nothing in the path variable that points to java.exe - how does that work? I mention it because on the server, the command does NOT work and there is also nothing in the path variable pointing to java.exe. I got the above result by drilling down to where java.exe is and executing java.exe "directly".

No, I mean are you sure that you have the 64-bit version of ColdFusion installed?

Sorry, looked but didn't see. How do I tell?

Though I'm unsure as to how to tell if I'm running 64 or 32 bit ColdFusion, I suspect it is the latter because there is nothing about 64 bit in the system information report and it currently runs happily with 32 bit Java whereas I can't get it to start with 64 bit Java.

That would do it then. The 64-bit JVM obviously only works with the 64-bit version of ColdFusion.

Successfully updated to Java 1.6.0_38 (32 bit) and restarted CF9.
Many thanks for the assistance.