In setting up Lispbox on a Windows machine I found it wouldn’t run. From a command prompt, running lispbox.bat, returned “Access is denied”.
I discovered that the Security settings on the EXEs were set to not allow them to run.
I realized that I had unzipped the downloaded zip with the unzip included in Cygwin.
After unzipping the Lispbox download with a copy of WinZip the problem went away.