How to Set the environment using CreateProcess

[vipin_nvk]

Hi My application (say App.exe) is supposed to be launched by another process called Laucher.exe since some environment variables are needed to be set for App.exe to run. I am using CreateProcess API in Launcher.exe to set the necessary environment variables. I had written a sample earlier where in both by Launcher.exe and App.exe were non-unicode (built in VC 6.0). But, currently I have moved to VS 2008 which where in the application comes with unicode settings by default. I have converted both Launcher.exe and App.exe to Unicode, but I am having a problem to use CreateProcess in Launcher.exe to launch App.exe Since my App.exe is in unicode I think we have to set the lpEnvironment (in CreateProcess to CREATE_UNICODE_ENVIRONMENT flag) But just setting this and using the API the same way fails to launch my App.exe. I could not find sufficient links on the internet which explain how to use this flag and launch the application in a unicode environment Can somebody help me out if you have used this in advance? Thanx Vipin

[_Superman_]

After reading your question, I'm guessing your real problem is that CreateProcess API is failing in UNICODE builds. And that in the earlier NON_UNICODE builds it was successful. If so, your title is very misleading. Actually there is a difference in how you would call CreateProcess in UNICODE and NON-UNICODE builds. In UNICODE builds, the lpCommandLine parameter of CreateProcess cannot be a constant because it will be modified internally. So you need to pass in a non-constant buffer here. This is documented in MSDN, but you would need to read it properly, which most of us do not do. :)

«_Superman_»