delong18

From what I have seen, DEP does not make any logs or messages saying it has blocked something. The only way to check is to add a exception for the program and see if it runs. I'm not saying it is a DEP issue, but, the very same thing happened to me. When I tried to run a program, it just shuts down with no errors or log in the event viewer and I have been using the program for months before it happened.

Try running the disk cleanup utility and then run the install again.

When it pops up and closes like that, that is usually caused by DEP (data execution prevention). It is meant to keep viruses from running, but it may be blocking the install. If you are using xp, right click on my computer and click on properties and then click on the Data execution (or something like that). You should be able to add the install to the list and try again. I am not sure how to do it in vista, sorry.