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VC++7 to VC++6 Project Converter

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22 Oct 20033 min read 1M   25.6K   247   261
Automatically convert Visual C++ 7.0 projects back to Visual C++ 6.0 projects.
This tool automatically converts VC++7 projects back to VC++6 projects. Without this tool, you end up recreating your projects from scratch, which is a total waste of time, and prone to errors. In this post, you will find a list of scenarios where this tool is useful. You will also find out how to use it, what is converted and technical details.

Image 1

What Is This ?

This tool automatically converts Visual C++ 7.0 projects back to Visual C++ 6.0 projects. In other words, .sln/.vcproj file pairs are translated to .dsw/.dsp file pairs.

Important note, there is no loss during the conversion: source code is left unchanged; only .dsw/.dsp are created (or overwritten).

Why?

First of all, because MS doesn't provide it. It's easy to become cynical against MS when you feel how bad it is to sell developer tools without all the necessary "moulinettes" (converters in ugly English) to go backward.

Without this tool, you end up recreating your projects from scratch: a total waste of time, and prone to errors. Actually, there are several scenarios where this tool is useful:

  • Someone gives you a VC++ 7 project, and you only have VC++ 6 installed.
  • You have upgraded your project(s) from VC++ 6 to VC++ 7, and you have both .dsw/.dsp and .sln/.vcproj files on your local system drive, but you are willing to keep those files synchronized so any time you need to open the project, you need not bother the VC++ version you work with.
  • Provide both versions of projects (for instance, when you share code on CodeProject), so your audience does not need to bother with knowing which devtool is required.

How to Use It

The tool is a command line of the form:

prjconverter <solutionname (full filepath)>[.sln]

For instance:

prjconverter c:\tmp\betterxml\betterxml.sln

For info, type prjconverter.exe alone in the console.

What is Converted

A few steps to let you know how the work gets done. The .sln solution file is opened and translated to the .dsw file format, along with all project declarations, dependencies, and source control tags.

Then all .vcproj project files are translated to .dsp files. I use MSXML to parse the .vcproj file format, and build the meta-model out of it. Then what's left to do is serialize all those XML thingies into the standard .dsp symbol lines.

Of course, we care about project configurations (debug, release, ...), and custom file configuration settings.

Technical Details

In the code provided, slnprocess.cpp does the .sln =>.dsw conversion. vcprojprocess.cpp does the .vcproj => .dsp conversion. And vcprojconfiguration.cpp holds the project meta-model (all project setting tabs). In VC++ 7, the meta-model is now programmable. Let's check out this link. In fact, vcprojconfiguration.cpp reflects exactly this meta-model (as if it was internal MS code).

Disclaimer

This tool has been extensively tested before being published (MFC/COM/ATL/console apps, makefiles, ...). Though I am willing to know if there is anything I can do in order to improve it, let me clearly say that it's not my fault if your project is corrupted by this tool.

Update History

  • 27th September, 2002 - Code complete
  • 2nd October, 2002 - Now it is possible to convert .vcproj files alone (no need of a root .sln file): just type the .vcproj full path in the command line.
  • 30th October, 2002 - Improvements based on user feedback: added missing default link libraries, expanded certain macro variables such like $(OutDir) and $(IntDir), replaced or removed certain macro variables not supported by VC6 such like $(NoInherit), added /GX (exception handling enabled)
  • 13th November, 2002 - Bug fixes: filenames with spaces, MFC extension DLL support, custom precompiled header setting, project setting inheritance

License

This article has no explicit license attached to it, but may contain usage terms in the article text or the download files themselves. If in doubt, please contact the author via the discussion board below.

A list of licenses authors might use can be found here.


Written By
France France
Addicted to reverse engineering. At work, I am developing business intelligence software in a team of smart people (independent software vendor).

Need a fast Excel generation component? Try xlsgen.

Comments and Discussions

 
Generalmy god! Pin
Huisheng Chen13-Apr-05 16:56
Huisheng Chen13-Apr-05 16:56 
General$(ConfigurationName) Pin
Coruscant30-Mar-05 21:39
Coruscant30-Mar-05 21:39 
GeneralRe: $(ConfigurationName) Pin
Ed Cieslik1-Oct-08 23:30
Ed Cieslik1-Oct-08 23:30 
GeneralRe: $(ConfigurationName) Pin
Ed Cieslik1-Oct-08 23:33
Ed Cieslik1-Oct-08 23:33 
GeneralProblems with MFC ActiveX control Projects Pin
emadns23-Mar-05 20:02
emadns23-Mar-05 20:02 
GeneralGreat Work!! Pin
Ganesh_NV14-Mar-05 20:10
Ganesh_NV14-Mar-05 20:10 
Generalmsxml2.h Pin
gdom10-Mar-05 6:57
gdom10-Mar-05 6:57 
GeneralDSP file format Pin
atech21-Jan-05 9:48
atech21-Jan-05 9:48 
Great tool you have here. Helped me a lot!
What format description have you used? Did you reverse it yourself? It is very interesting to know what all these
# PROP BASE
lines mean and how to adjust them. For example, I never used MIDL and don't know what is, but generated .dsp from .vcproj file includes strings like:

...
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""
CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
....
# ADD BASE MTL /nologo /win32
# ADD MTL /nologo /win32


BTW, do you plan to release your package somewhere? (e.g. SourceForge) to allow people contribute and find it more easily? (I've seen some perl scripts to do the task - think these can be helpful too).

Tnx.
GeneralRe: DSP file format Pin
Stephane Rodriguez.24-Jan-05 9:44
Stephane Rodriguez.24-Jan-05 9:44 
QuestionWhat am I doing wrong? Pin
cdhuntsman22-Dec-04 11:31
cdhuntsman22-Dec-04 11:31 
AnswerRe: What am I doing wrong? Pin
Stephane Rodriguez.31-Dec-04 11:35
Stephane Rodriguez.31-Dec-04 11:35 
GeneralHelp project problems Pin
Adrian ~ Foobar Software19-Dec-04 8:18
Adrian ~ Foobar Software19-Dec-04 8:18 
Generalsolution dependencies removed Pin
davelasker12-Dec-04 8:28
davelasker12-Dec-04 8:28 
GeneralRe: solution dependencies removed Pin
Stephane Rodriguez.14-Dec-04 9:58
Stephane Rodriguez.14-Dec-04 9:58 
GeneralRe: solution dependencies removed Pin
Adrian ~ Foobar Software19-Dec-04 8:11
Adrian ~ Foobar Software19-Dec-04 8:11 
Generalconversion Pin
andi999-Dec-04 5:20
andi999-Dec-04 5:20 
GeneralRe: conversion Pin
Stephane Rodriguez.14-Dec-04 9:45
Stephane Rodriguez.14-Dec-04 9:45 
GeneralThank you Pin
Yulianto.28-Sep-04 19:35
Yulianto.28-Sep-04 19:35 
GeneralThank You! Pin
G A McHale14-Sep-04 20:19
G A McHale14-Sep-04 20:19 
Generalthank you Pin
Anonymous12-Sep-04 0:35
Anonymous12-Sep-04 0:35 
Generalnew edition down Pin
yjh19829-Sep-04 15:57
yjh19829-Sep-04 15:57 
GeneralRe: new edition down Pin
Stephane Rodriguez.10-Sep-04 1:30
Stephane Rodriguez.10-Sep-04 1:30 
GeneralRe: new edition down Pin
yjh198212-Sep-04 14:56
yjh198212-Sep-04 14:56 
GeneralRe: new edition down Pin
G A McHale14-Sep-04 20:22
G A McHale14-Sep-04 20:22 
GeneralRe: new edition down Pin
pblais30-Apr-07 10:24
pblais30-Apr-07 10:24 

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