How does the Developer command prompt for Visual studio 2012 search the location of ildasm.exe. Running command window Developer command prompt for Visual studio
There are various developer command prompts for different targets, each starts a batch file that modifies the PATH
and some other things so that various developer programs can work.
Note that each command window started by these batch files starts with the PATH
specified via the user and system environment settings. The batch files then modify the PATH
etc within just that command window. Starting a new command window will not get the settings from the batch file as it does not modify the user and system environment settings.
If you really want easy access to ildasm.exe
frequently from a command window you can modify the user environment settings. On Windows 7 you can access these settings via the properties of the computer where you select "advanced system settings" and then "environment variables".