Regarding which operating systems are compatible for Sybase SQL Anywhere 7
Currently i am using windows 2003 sever for Sybase SQL Anywhere 7 data base engine related operations and i wish to establish it under Server 2008 64Bit server environment.
SQL Anywhere 7 is 16-year-old technology. There have been seven major versions released since v7. It has been end-of-lifed for at least six years, so it's not supported on any platform.
That said, I know of no reason it wouldn't work on newer versions of Windows.
But you really should find a way to upgrade to a later version. The latest version, 17, can't directly read v7 databases but it does have the ability to convert v7 databases to a newer format.
Disclaimer: I work for SAP in SQL Anywhere engineering.