Visual Basic Extensibility Reference
Returns the full path name of the Visual Basic IDE. (That is, the path where vb6.exe was run.)
The object placeholder represents an object expression that evaluates to an object in the Applies To list.
The path name returned is always provided as an absolute path (for example, "c:\projects\myproject.vbp"), even if it is shown as a relative path in Visual Basic (such as "..\projects").