I have a uVision project that uses an external flash loader module to get an app into both the MCU's internal flash and an external NOR flash chip. This works fine on multiple developer's PCs here. I have a coworker at a remote site that is trying to use the eval version of the tools just to load the HEX file I created into a board at his site. That is not working. So, I tried to do that process on another coworkers PC here, that is not a developer and has no programming tools installed on it. It worked fine on his PC. I sent them both the same ZIP file that had the flash loader module, uVision project, and HEX file. I confirmed over the phone that all the project settings look correct on the PC my remote coworker is using. Can anyone offer any suggestions on why the HEX download works on multiple PCs, but not another? The laptop we're having trouble with is a relatively new 64-bit Windows machine with plenty of resources. The JTAG tool we're all using is the Segger J-Link Lite that comes with the eval kits we purchased for this project. The download looks like its working on this remote laptop, except it doesn't seem to take any time to do the NOR flash chip erase or download (and the data that's supposed to end up there doesn't get there).