I have a project that has the following line in an additional section:
"$ (SOMEPATH_SHORTNAME) \ include"
Can someone tell me where I can define $ (SOMEPATH)? I can't find it just by searching in Visual Studio
If this is not an environment variable, macros are the place to look. In the property sheets, click the (...) button next to the "Additional directory inserts" line and expand the "Macros →" button in the dialog box that appears.
Check environment variables.