This is a error which I came across while installing Developer Suite 10g on Windows 7 64 bit machine. Initially I went through some of the documents and found out I will have to download compatible version of Developer Suite 11g but then I decided to make some changes in the compatibility of the existing setup file.
Checking operating system version; must be 5.0, 5.1, 5.2 or 6.0. Actual 6.1. Failed
Right click the setup file and click on "Troubleshoot Compatibility"
Click on "Start the program", Your problem should be fixed
Follow the below links for more tutorials:
How to configure Samba 4 Secondary Domain Controller
How to secure Apache web server in Linux using password (.htaccess)
How to register Red Hat Linux with RHN (Red Hat Network )
Red hat Enterprise Linux 5.5 Installation Guide (Screenshots)
15 tips to enhance security of your Linux machine
Why is Linux more secure than windows and any other OS
What is the difference between "su" and "su -" in Linux?
What is swappiness and how do we change its value?
How to log iptables messages in different log file
What are the s and k scripts in the etc rcx.d directories
How to check all the currently running services in Linux
How to auto start service after reboot in Linux
What is virtual memory, paging and swap space?