FAQ: RelCalc and Windows 7

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RelCalc and Windows 7
The Microsoft Windows 7 operating system includes many new and revised features. Windows 7 also includes User Account Control (UAC), a security technology that limits access to critical system resources. With UAC, when an action requiring administrative rights is requested, the user is prompted for an administrator name and password; in cases where the user is already logged in as an administrator, the user is still prompted to confirm the action.

The following notes address installing and running RelCalc V5.1 on Windows 7.

Note: RelCalc V5.1 will run on the 32-bit and 64-bit versions of Windows 7.

Installing RelCalc on Windows 7
- RelCalc Version: If you want to install and run the RelCalc for Windows software on Windows 7, you MUST be using RelCalc V5.1 or later (RelCalc V5.0 is NOT Win 7 compatible). Note: you can find your current RelCalc version by using the Help/About RelCalc menu item. If you're running an older version of RelCalc, see the What's New page for details on getting the latest version.

- Installation Rights: The RelCalc setup installation program needs to run with administrative rights. The Win 7 UAC system typically detects installation programs and requests elevated administrative rights, so when you start the RelCalc setup program you should be prompted for permission to continue.

Note: the Win 7 UAC "Detect application installation and prompt for elevation" setting is enabled by default, but it can be turned off. If this setting is disabled, the RelCalc setup will not be able to properly install RelCalc. Thus, if you do not get a permission prompt when you start the RelCalc setup program, please start it again by right-clicking its icon and choosing the "Run as Administrator" menu item.

- Installation Location: Do NOT install RelCalc under the "C:\Program Files" folder, since under the Win 7 UAC system the "C:\Program Files" folder is a protected location. We recommend installing RelCalc in the default location offered by RelCalc setup.

Running RelCalc on Windows 7
- Administrative Rights Not Required: If you follow the directions above when installing RelCalc, then you should be able to run RelCalc on Windows 7 without administrative rights.

- RelCalc User Settings: We save various RelCalc program settings and preferences in an INI file in your "C:\Windows" folder. Since this is a Win 7 UAC protected folder, the Win 7 UAC system will actually write the data to a virtualized file copy that is stored under your user profile. Note that if you have multiple user accounts on your Windows 7 machine, and if more than one of the users is using RelCalc, then each user's RelCalc settings are saved to a different virtualized copy.

- WinHelp: The RelCalc Help system uses a Windows subsystem known as WinHelp (32-bit). Microsoft does not include the 32-bit WinHelp in Windows 7. Microsoft has an article discussing this subject: http://support.microsoft.com/kb/917607. This article has links to download and install WinHlp32.exe.

Note: you only need to install WinHlp32.exe once, and you may have already installed it for another program. To test this while running RelCalc, press F1 to get Help: if you get an error message, then proceed with the above.

Questions or Problems
If you have any questions or problems, please contact us.