Also upgraded the 64-bit JDK, as Konstantin mentioned there was a new update. Still throws the same error in the Windows' Application log, but just a new faulting module path (changed it to the JDK version of jvm.dll):
Faulting application name: tomcat6.exe, version: 1.0.5.0, time stamp: 0x4d245ac2 Faulting module name: jvm.dll, version: 20.0.0.11, time stamp: 0x4da6d3c2 Exception code: 0xc0000094 Fault offset: 0x0000000000308eef Faulting process id: 0x4a8 Faulting application start time: 0x01cc0a80ca79488a Faulting application path: C:\Program Files\Apache Software Foundation\Tomcat 6.0\bin\tomcat6.exe Faulting module path: C:\Program Files\Java\jdk1.6.0_25\jre\bin\server\jvm.dll Report Id: 087ebb72-7674-11e0-9d83-005056a10003