How do I know if a particular exe/com/dll file is made in which programming language. Specifically VB, c++,c, delphi, some of .NETs atleast

short answer - you don't. BlueRaja.admin@gmail.com

Actually yes you can Regarding Microsoft compilers The quickest way is to right click the file and looking at the version tab If a C++ application is compiled using the MFC then it will have "MFC APPLICATION" in the description. Visual Basic won't have MFC in it .. Typicvally VB has Company name Fielversion Internal name Language Original Filename Product name Product version Product name tends to be something like project1 (though this can be changed by the programmer) If you have just compiled a C or C++ using the .cpp file only it will not have the version tab But the best way of checking the file is to use a resource hacker or some kind and a hex editor. To just differniate the type of exe a hex viewer/editor is best A hex editor can be used to read the file (or you can can even try good ole notepad too !!), VB files will have things like MSVBVM60.DLL, C:\Progz\MVS6\VB98\VB6.OLB, and VB object names like form1, label1 etc inside the file (note anything MSVB = Msoft Visual Basic) Anything from DotNet will have references to .net in it, and the VB or C DLL e.g. MSVBVM70. dll (for vb) - basically it will reference the DLL it uses and diferent compilers use different dll's - hence you can seperate Vb and C++ compiled exe's. Dunno about delphi's exe but if you have programmd using delpi .. you may recognise references in it .. if not at least you'll know it is not a VB or MSC++ compiled file (for a resource hacker Go to download.com and download a app called resource hacker. Anything compiled from C++ will have dialogue boxes that can be displayed using the resource hacker Resource hacker can only alter the icon/icon group and version info tabs of a VB file.)

After saying i did't know about Delphi and posting the above, i;ve just looked at a Borland compiled file . and noticed this in the exe "SOFTWARE\Borland\Delphi\" and "Portions Copyright (c) 1983,97 Borland" plus a couple more references to Borland You can actually view all this very simply by opening in a simple text editor (although hex editors/viewers are best for looking through files like these)

====================================================================== Also, with Delphi, you will see references to the Visual Control Library and its version (e.g. VCL60.DLL). borelli35