Installing Q2004R2 on your shiny new Vista box initially looks bad, a dialog says that C:\Program Files\Quicken\qwapp.dll and C:\Program Files\Quicken\qwinver.dll cannot be registered (or something similar).

Then when you try to start Quicken after install (or after upgrading to Vista) you get:

The application has failed to start because MFC70.dll was not found.
Re-installing the application may fix this problem.

:-(

Anyway, not being one the shirk a challenge and more importantly expecting to upgrade to Vista one day but wanting to carry on using Quicken I've spent some time this afternoon trying to get it going.

To sumarise to the minimun number of steps (and cut out the pain and experimentation I've been through) here we go:

1. Make sure you are an Administrator of the Vista PC. If you only have one account you probably are, if you need to check: Start | Control Panel | User Accounts | Add or remove User Accounts.

2. Goto www.dlldump.com and download the 3 dlls MFC70.dll, msvcr70.dll and msvcp70.dll. Ideally download them straight to where Quicken is installed (C:\Program Files\Quicken) but Vista would not let me do that, I had to download them to my user Documents folder first then copy them from there to the Quicken install dir.
http://www.dlldump.com/download-dll-files_new.php/dllfiles/M/MFC70.DLL/7.00.9466.0/download.html
http://www.dlldump.com/download-dll-files_new.php/dllfiles/M/msvcr70.dll/7.00.9466.08/download.html
http://www.dlldump.com/download-dll-files_new.php/dllfiles/M/msvcp70.dll/7.00.9466.08/download.html

3. Open a DOS box (Start | All Programs | Accessories | Command Prompt).

4. At the DOS prompt type (you'll need to change the dll location if Quicken is no installed in C:\Program Files\Quicken):
regsvr32 /s "C:\Program Files\Quicken\qwapp.dll"
regsvr32 /s "C:\Program Files\Quicken\qwinver.dll"

That's it - Quicken will now run and you can load your file (BACK IT UP SEVERAL TIMES AND PUT THE BACKUPS SOMEWHERE SAFE FIRST).

originally from here