I am writing a batch file which is supposed to update the source files from tortoise and - if anything new was gotten - build the solution. Should be a very simple task. My batchfile looks like this (I've removed the non-essentials) set updatepath=%1 set solution=%2 set output=%3.txt call TortoiseProc.exe /command:update /path:%updatepath% /closeonend:2 call %devenv% %solution% /Build Debug /Out %output% Now, I'd like to know if tortoise actually got new code for me and the not build if it didn't. How do I do this? I am running Windows Vista (The batch script is called from another batch script about 7 times - one for each project I need updated and - perhaps - build).