Had some problem with creating a droplet in Photoshop CS3. The droplet exe was created correctly but when I tried to run it (by droping a file onto it) nothing happened except that Photoshop started, but no file was loaded or processed.
After some search I found a sollution. The problem was that registry keys pointed to my previous Photoshop version (which was CS2). This seems to occur at upgrades of Photoshop. If you have a simular problem (will probably work in other Photoshop versions where Adobe's installer hasn't changed the registry keys correctly) you can fix this by doing the following:
1) Download the DropletFixer.zip from this page http://www.adobeforums.com/cgi-bin/webx/.3bbc8126
2) If you have increased the security on your machineyou might have assigned the run command to open any .vbs file in Notepad instead of running it. In this case you need to run it manually by entering the command prompt (run "cmd") and then write the following "cscript c:\dropletfixer.vbs" (or where you have placed the file).
If you're concerned about running scripts and files from the internet you could open the vbs and do the operations manually. If you know any programming language you would understand the code in the file as it's pretty straightforward.