Can I tell this about DLL file

[Mark_Meng]

I found a dll file. Can I tell is it written by VB or C++? Also, I have another two dll files in different directory but have same names, Can I tell which one is the one used in ASP code? Thanks very much for help

[kovan]

use OLE Viewer program which should come with your visual studio package
then you can probably tell their functionality and compiler from looking at the interfaces

[JoshT]

To find out if it was written in vb, use dependency walker (also included with vs) to look at the dll. If MSVBVM*0.DLL (* = 5 or 6) is there (most likely the only direct dependancy) it was make with VB.