We've released an updated version of the TCP Optimizer 2, including bug fixes and couple of user suggested changes. It can be downloaded from here:
TCP Optimizer v 2.0.1
The online documentation (including a list of fixes and changes) for this release is available here: http://www.speedguide.net/tcpoptimizer.php
We've fixed all known bugs, including the Windows 9x problem under "Optimal settings" with the final 2.0.0 version we found. I'd lke to extend our apologies to those who had problems with the Optimal settings under Windows 9x and version 2.0.0 of the program.
The only outstanding issue (that does not hinder the program performance in any way) we're aware of is the program not recognizing a few non-standard networking adapters. For example the nVidia nForce2 build-in NIC in the Gigabyte GA-K8NF-9 motherboard. If you have a networking adapter not recognized by the program, we'd like to hear from you, please give us any detailed information you can, such as make/model of the network adapter (or motherboard/chipset if built-in). Exporting and sending us a part of the Registry would really help pinpoint the issue, as per this thread. Note this issue does not hinder the ability of the program to optimize your internet connection.
Please feel free to post any suggestions, questions, and possible problems with the program in this thread.
You can view any past issues, and list of updates in the following threads:
version 2.0.0 final
version 2 beta