I'm having difficulties installing the LMS 4.0 eval on an 64-bit 180-day Windows 2008 Server Standard R2 SP1 eval.
The installer says that it needs 2008 Server Enterprise, but the LMS 4 release notes say 2008 Server Standard works. It also says that R1 is supported, but makes no specific reference to R2. I'm assuming that if R1 is supported, R2 would be supported as well, no?
You need to install a patch for this OS support:
CiscoWorks_LMS_4.0.x_WIN2K8_R2.exe
Make sure you follow the install instructions in the readme