I have just installed Eclipse 3.1M6.

I then proceeded to run the exe from myEclipse and the installer starts but then exits with no other error. Do you have a manual installation script/instructions? I can proceed with that.

I was running previoulsy the M4 build of eclipse and the first iteration of the 3.8.4 Beta version of myEclipse with no problem. So the rest of the environment is correct.

Additional information: I'm running this on WIndows 2003 (JDK 1.4.2_07
I also tried the regular Beta (1) and also failed while installing against the M6 version of Eclipse.
I loooked at the Event Viewer and noticed the following message after a failure to install:
Faulting application EnterpriseWorkbenchInstaller_030804_3.1M6Beta.exe, version 0.0.0.0, faulting module EnterpriseWorkbenchInstaller_030804_3.1M6Beta.exe, version 0.0.0.0, fault address 0x00021cb0.

I appologize for missing this post, yes we do provide a Manual Install download that is simply a Zip file, and IMO easier to install since you just unzip it and then follow the instructions that are included within it.