Generally, Domino 5.0.5 or later supports all current versions of the WebSphere Application Server: version 2.0, 3.0, 3.5 and 4.0.
Please refer to the detailed table below for specific support information on functions supported between Domino and WebSphere Application Server.
| Function | WebSphere versions supported | Domino versions supported |
| Use WebSphere DSAPI plug-in with Domino HTTP task | WebSphere 3.02 PTF2 1 WebSphere 3.5 WebSphere 4.0 | Any Domino R5 version, 5.0.5 or later recommended |
| Use Domino LDAP service for WebSphere secure authentication | All | Domino 5.0.5 or later |
| Perform single sign-on from a Web browser across Domino and WebSphere servers | WebSphere 3.53 WebSphere 4.03 | Domino 5.0.5 or later |
| Call local Domino Java methods from WebSphere Java code on the same server | All | Any Domino R5 version, 5.0.5 or later recommended |
| Call remote Domino Java methods from WebSphere Java code on a remote server | All | Domino 5.0.4 or later 2 (5.0.5 or later recommended) |
| Call Domino Java methods from WebSphere code, passing the new Session Token for single sign-on | not supported at this time, to be addressed with a future fix to WebSphere 3.02 and 3.5 | Domino 5.0.5 or later |
2 See Domino 5.0.4 Release Notes for information on the new ncsow.jar file.
3 Single Sign-On for WebSphere and Domino was only tested on Windows NT for this release, although other platforms are supported.