I noticed problems using isapi_redirector2 with tomcat versions 4.1.12, 4.1.18 and
4.1.24 when i try to upload a file via a multipart/form-data POST-Request.
When trying to send it directly to the Tomcat-HTTP-Connector i have no problem.
Using Apache with mod_jk also works fine.
The old isapi_redirect with Tomcat 3.2.3 worked fine as well. So i assume, the
problem is in isapi_redirector2.dll
When uploading files >10k the Uploaded stream seems to be corrupted. The
Multipart-Parser (oreilly) complains about an "unexpected end of part".
Sometimes the connection will only be halted, so that tomcat waits in upload
until timout is reached.

If this was the wrong place to put my request, i apologize. 

Thx Hans-Peter