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1991-12-16
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Older, Windows 2-based software won't run in Windows 3's
Enhanced mode--or will it? These programs will run under
Windows 3's Real mode--and you can run Real mode Windows
inside the Enhanced mode. You can even exchange data between
newer and older Windows programs via the Clipboard.
For each Windows 2 application, create a PIF file using the
Windows PIF Editor: Enter c:\windows\win.com in the Program
Filename text box and an appropriate name for Window Title.
In the Optional Parameters text box, enter /r and a space,
followed by the drive, path, and file name and extension of
the Windows 2 application. If, for example, the application
is Excel and it's stored in a drive C: directory called
EXCEL, you'd enter /r c:\excel\excel.exe. Fill in the
Start-up Directory text box, and adjust the memory
requirements as needed. Save the PIF file with an
appropriate name, such as EXCEL-R.PIF.
Then, in a Program Manager window, create a Program Item
icon for each of these new PIF files by choosing New from
the File menu. and selecting Program Item. Type in an
appropriate description and for the command line, type the
name of the PIF file (you can include its path, as in
c:\windows\excelr.pif). The Program Manager will display a
standard DOS icon labeled with your description. You can now
run the application--in Real mode--by double-clicking that
icon.
Pressing <Alt>-<Tab> (which moves you between Windows tasks)
will switch you back to the Enhanced mode environment. But
when you're finished with your application and select File
Exit, watch out. Once the application's gone, you'll still
be in Real mode, with a Program Manager on your screen that
looks identical to the Enhanced mode Program Manager. You'll
need to close this Real mode Windows session before exiting
the Enhanced mode session that contains it.
If you don't want to bring up a Real mode Program Manager
for every Real mode application you run, make a single PIF
file called WINR.PIF, using c:\windows3\win.com as the
program file name, and simply /r as the optional parameter.
Make a Program Item for that PIF file, and label it Real
mode Windows. You can run several Real mode applications
within this one session, subject to memory constraints.
Those applications can exchange data with Enhanced mode
applications via the Clipboard.
Ross Allen
Belmont, California
Editor's note: If you use this technique, remember that
running one Windows session inside another means less memory
for your applications. Unless you can't live without your
old software, you may want to price Windows 3 upgrades while
they're still available. If you wait too long, you may have
to buy the new version at the full price.
Title: Let's Get Real
Category: MSC
Issue date: Jul 1991
Editor: Brett Glass
Supplementary files: NONE