Code 19 on Windows 7 SP1 ( CD/DVD Drives)

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19) "
If you are looking for a solution for the above issue, head straight to:
http://support.microsoft.com/mats/cd_dvd_drive_problems/en-us

If you have multiple disc authoring apps installed (not good), one of them might be responsible for this issue.


Also visit the following link for hardware issues in general:
http://support.microsoft.com/mats/hardware_device_problems/

VirtualBox Guest Additions For Linux In RHEL 6.0 Server

To install VirtualBox Guest Additions on Red Hat Enterprise Linux Server 6 you will need to install the following packages from the DVD media,

1. kernel-devel-2.6.32-71.el6.i686.rpm
2. kernel-headers-2.6.32-71.el6.i686.rpm
3. glibc-headers-2.12-1.7.el6.i686.rpm
4. glibc-devel-2.12-1.7.el6.i686.rpm
5. mpfr-2.4.1-6.el6.i686.rpm
6. ppl-0.10.2-11.el6.i686.rpm
7. cpp-4.4.4-13.el6.i686.rpm
8. cloog-ppl-0.15.7-1.2.el6.i686.rpm
9. gcc-4.4.4-13.el6.i686.rpm

Use the following command to install the guest additions ,
[root@localhost ~]#./VBoxLinuxAdditions.run


Default Installation of RHEL: Desktop
Read instructions for RHEL 5 here: http://linopsys.blogspot.com/2008/11/installing-virtualbox-guest-additions.html

Learn Java : Official Tutorials

If you want to learn Java programming language the official tutorial available for download at the following link is a good starting point.

http://download.oracle.com/javase/tutorial/

Look for the “Tutorial Resources” box to download the tutorials bundle(101 MB download).