Hi all,
First I want to say thank you to everyone that helped me with this. Patient and helpful, exactly what you should expect from a forum, sadly, not met on most other forums I've participated in!
I've managed to resolve this and get Sybase running as a service.
As with Win2000 I used "instsrv.exe" to get the servince installed.
Then Under: "HKLM\SYSTEM\CurrentControlSet\Services\<MY_SYBASE _SERVERNAME>" I added the path to the "srvany.exe", ie, "C:\Program Files\Windows Resource Kit\Tools\srvany.exe"
Then I added a new key called "Parameters" under this entry and then under the "Parameters" key I added a string value called "Application" In the "Application" entry I entered: "E:\sybase\ASE-12_0\bin\sqlsrvr.exe -dE:\sybdata\master.dat -sMY_SYBASE_SERVER -eE:\sybase\ASE-12_0\install\errorlog -iE:\sybase\ini -ME:\sybase\ASE-12_0"
Service now starts a treat with no complaints!
Once again, thanks for all your help on here!