Welcome to WinSteam 3.2 from
Techware Engineering Applications, Inc.
WinSteam Version 3.2 provides accurate steam property functions which can be accessed through DeskTop
Steam, our interactive steam property calculator, and can be called by many Windows applications including
Microsoft Excel, Lotus 1-2-3, and MathSoft Mathcad. Programmers can call the steam functions from
programming languages such as Visual BASIC, Visual C++ and many databases. The software supports 32-bit
versions of most applications and can run under Windows Windows 95, 98, NT, 2000 or XP.
System Requirements
The minimum system requirements needed to use WinSteam Version 3.2 include:
• Microsoft Windows 95, 98, NT, 2000, XP or Vista.
• All other hardware required by your version of Microsoft Windows.
• Approximately 1.3 MB of free disk space
Multi-User Licenses
If your WinSteam license allows more than one concurrent user, then you may repeat the installation on as many
computers as indicated on your license. In each installation, you will use the same serial and authorization
numbers.
Preparing for Installation
Locate Your Serial and Authorization Numbers
You will find your serial number and authorization number on the license document we sent you with your
purchase. You will be asked for these numbers during the installation process. These are your unique
numbers. Be sure to store them in a safe and secure place.
If someone else wishes to try WinSteam on his computer, do not
give him your numbers. You are
responsible for keeping these numbers private. Instruct them to visit our website where they can download a
copy for a 30 day evaluation.
If you are installing WinSteam as a demo you will not need a serial number, however, if you try to install
WinSteam as a demo after the evaluation period has expired, you will be prompted for a demo number. If
you require a second evaluation period, call Techware.
Log On with Administrator Privileges
If your computer is running Windows NT, 2000, XP or Vista, you must be logged in with Administrator
privileges for a complete installation.
Install Other Applications before WinSteam
If you wish to use WinSteam with Excel, 1-2-3 or Mathcad, make sure these applications are installed before
installing WinSteam. The Setup program will copy add-in files to specific directories of these applications so
that they can find the WinSteam add-ins. If you upgrade any of these applications after installing WinSteam,
you may have to re-install WinSteam for proper operation.
Step-by-Step Installing
1. Open Windows Explorer, and find the WinSteam file that you downloaded from our website. Double click the
file “WinSteam.exe” to begin the installation.
2. In the Welcome dialog box, press 'Next'
3. In the Software License Agreement dialog box, press ‘Yes’.
4. In the Choose Destination Location dialog box, press ‘Next’ to accept the default location. Press ‘Browse’
to select an alternate location then press ‘OK’ and ‘Next’ to continue.
5. In the Select Components dialog box, add-ins for Excel, 1-2-3 and Mathcad should be checked if these
applications are installed on your computer. If you wish to use the functions with C++ or Visual Basic, check
the “Programming Support” box then press ‘Next’ to continue.
6. In the Question dialog box, press ‘No’ if you will be using old Excel spreadsheets containing WinSteam
functions. Press ‘Yes’ if you are a new user. If you press ‘Yes’, you must include the unit set argument with
each function call.
7. In the Select Program Folder dialog box, press ‘Next’ to accept the default folder.
8. In the Product License Verification dialog box, press the “Enter License Numbers” button if you have your
Serial and Authorization numbers; enter them then press ‘OK’ and then ‘Done’. If you are installing WinSteam
as a demo, press the ‘Demo’ button. You should receive a notice that you have 30 days to evaluate the
software.
9. Press ‘Finish’ to complete the installation.
Getting Started
Using the DeskTop Steam Calculator
DeskTop Steam is a Windows program that calculates the thermodynamic and transport properties of steam and
water. It calculates all unknown properties when a state point is defined by two known properties. DeskTop
Steam allows you to label and store a collection of state points, which can be printed in a table or copied to the
clipboard and pasted into other Windows applications.
You can launch DeskTop Steam by clicking the Windows ‘Start’ button then go to ‘All Programs’, ‘TechwareEng’
folder, ‘WinSteam 3’ folder and click “DeskTop Steam’.
Once you have started DeskTop Steam, you can get specific instructions for using it from the Help Menu. We
suggest that you start by clicking “DeskTop Steam Topics” on the Help ‘Contents’ tab and review the topics in
order.
You can find operating instructions for DeskTop Steam in Chapter 3 of the User’s Manual as well.
Using the WinSteam Functions from Excel
The WinSteam add-in for Excel is launched from within Excel. Once you have started Excel, use the Tools, Add-
ins menu to start Excel’s Add-In Manager. (In Office 2007, click the Office button, then click the “Excel Options”
button, then select the Add-ins tab and click the “Go…” button at the bottom.) You should see an item
“WinSteam for Excel” in the list box. Click the check box next to “WinSteam for Excel” and press ‘OK’. The
WinSteam copyright notice should be displayed on the status bar at the bottom of Excel. The WinSteam add-in
is now loaded into Excel and will reload every time you start Excel. If you do not want the Add-in to load each
time you start Excel, go back to the Add-in Manager and uncheck the WinSteam box before closing Excel.
If you did not find “WinSteam for Excel” in the Add-in Manager list box, click the ‘Browse’ button and look for the
file XLStm32.xll. It should be in the C:\Program Files\Microsoft Office\OfficeXX\Library directory, where OfficeXX
is the latest Office version installed. When you find it, click OK. “WinSteam for Excel” should now appear in the
list box.
Once the add-in is loaded, you can use the steam property functions in the same way as you would use Excel’s
built-in functions. That is, you can type the function in a cell formula or use the Insert Function menu to guide
you.
If you use the Insert Function menu, select the “Engineering” category and choose one of the functions beginning
with “Stm”. (In Office 2007, Insert Function is on the “Formulas” tab.) If you have other Techware add-ins
installed, you will see those functions as well. As you click on a function, you will see its description below the list
box. When you find the function that you want, click ‘OK’ and the next dialog box will guide you through the
selection of each function argument.
You can find more detailed information by clicking “WinSteam” on Excel’s Help menu or in the WinSteam User’s
manual.
Using the WinSteam Functions from 1-2-3
The WinSteam add-in for 1-2-3 is launched from within 1-2-3. Once you have started 1-2-3, use the F
ile, Add-
I
ns, Manage Add-ins menu selections to start the Add-In manager. Before you can use the WinSteam add-in for
the first time, you must register it by pressing the 'R
egister' button. You should see the file afsteam.12A in the
Register Add-Ins window. If you installed the file elsewhere, you will have to use the 'Look in' window to search
for the file. When you have located the afsteam.12A file, select it and press 'Open'. The add-in is now
registered.
To load the add-in after it is registered, click on the path name that has the afsteam.12A file. A check mark will
appear to the left of the path name indicating that the add-in is selected. Press 'D
one' to complete the task.
Thereafter, each time you start 1-2-3, the functions will be loaded automatically. If you wish to unload the
functions, use the Add-In manager and uncheck the add-in.
Once the add-in is loaded, the steam property functions can be used in any cell formula by typing the function
name in the same ways as 1-2-3's built-in functions.
You can find more detailed information by clicking “WinSteam Help” on 1-2-3’s Help menu or in the WinSteam
User’s manual.
Using the WinSteam Functions from Mathcad
The WinSteam add-in for Mathcad is a self-registering dynamic link library (DLL) named McdStm32.dll. The
setup program should have installed this file in the Mathcadx\userefi directory. Whenever a WinSteam function is
used, Mathcad will automatically load and register the function.
You can use the steam property functions by typing the function with its arguments or by using the Insert Function
menu.
If you use the Insert Function menu, select the “Engineering” category and choose one of the functions beginning
with “Stm”. If you have other Techware add-ins installed, you will see those functions as well. As you click on a
function, you will see its description in the box below the list. When you find the function that you want, click ‘OK’
and the function will be inserted in your worksheet with spaces for the arguments.
You can find more detailed information in the WinSteam User’s manual.
Getting Help when operating with Windows Vista
All Techware products use Microsoft’s WinHlp32.exe program for displaying help. This program is not included
with the Vista operating system but can be downloaded from Microsoft for free. Go to
www.microsoft.com/downloads
and search for “WinHlp32.exe”. You will find a title “WinHlp32.exe for Windows
Vista”. Download and install this program and help will be available. In Office 2007, the help files cannot be
launched from within Excel. Go to the Start Menu in the TechwareEng group and you will find a shortcut to the
help files.
