System Requirements

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Introduction

The System Requirements page allows you to specify the minimum system requirements for your product. These requirements are checked at the beginning of the installation process; if they are not met, the installer will display a message to inform the customer and refuse to install.

The system requirements checks are implemented with the aid of the LaunchCondition table in MSI installers. Because of limitations in this table (for example, the order in which checks are made cannot be controlled and checking stops with the first condition that is not satisfied), only the first failed system requirement is reported by MSI installers.

The system requirements checks are built into the installer and all requirements are checked before a message is issued (if any). You can control the text of the messages that are issued in case of failure by editing the corresponding localizable strings on the Tarma - Localized Messages page.

Attributes and options

The following attributes and options are available on the System Requirements page.

Attribute	Description
Windows 95 Windows 98 Windows Me	Check these boxes to allow installation on the corresponding Windows version, or clear them to prevent installation. If a version box is checked, you can also specify a minimum subversion from the drop-down list on the right.
Internet Explorer	Select the minimum required Internet Explorer version from the drop-down list, or select Don't check if Internet Explorer is not required.
.Net runtime	Select the minimum required .Net runtime version from the drop-down list, or select Don't check if .Net support is not required.
Windows NT4 Windows 2000 Windows XP Windows 2003	Check these boxes to allow installation on the corresponding Windows version, or clear them to prevent installation. If a version box is checked, you can also specify a minimum Service Pack level from the drop-down list on the right.
Windows Vista	Check this box to allow installation on Windows Vista and later Windows versions; clear it to prevent installation. This option includes all Windows versions that identify themselves as Windows NT with a version number greater than 5.2.
Display	Select the minimum required display size from the drop-down list, or select Any resolution if the display size does not have to be checked. Note: On systems with multiple monitors, only the display size of the primary monitor is checked.
Colors	Select the minimum required color depth from the drop-down list, or select Any color mode if the color depth does not have to be checked. Note: On systems with multiple monitors, only the color depth of the primary monitor is checked.
Memory size	Enter the minimum required physical memory (RAM) size, expressed as megabytes (MB; 1 MB = 1024 x 1024 bytes), or 0 if no memory size check is required. Note: Windows typically underreports the amount of memory slightly. For example, a system with 512 MB of RAM installed may be reported as having 511 MB. Please bear this in mind if you specify a minimum Memory size value; it's safest to specify 1 MB less: 127 instead of 128 MB, 255 instead of 256, etc.
Reset all	Click this button to reset all system requirements to their defaults, which generally means that any and all Windows versions and hardware specifications are accepted.

Attribute

Description

Windows 95
Windows 98
Windows Me

Check these boxes to allow installation on the corresponding Windows version, or clear them to prevent installation. If a version box is checked, you can also specify a minimum subversion from the drop-down list on the right.

Internet Explorer

Select the minimum required Internet Explorer version from the drop-down list, or select Don't check if Internet Explorer is not required.

.Net runtime

Select the minimum required .Net runtime version from the drop-down list, or select Don't check if .Net support is not required.

Windows NT4
Windows 2000
Windows XP
Windows 2003

Check these boxes to allow installation on the corresponding Windows version, or clear them to prevent installation. If a version box is checked, you can also specify a minimum Service Pack level from the drop-down list on the right.

Windows Vista

Check this box to allow installation on Windows Vista and later Windows versions; clear it to prevent installation. This option includes all Windows versions that identify themselves as Windows NT with a version number greater than 5.2.

Display

Select the minimum required display size from the drop-down list, or select Any resolution if the display size does not have to be checked.

Note: On systems with multiple monitors, only the display size of the primary monitor is checked.

Colors

Select the minimum required color depth from the drop-down list, or select Any color mode if the color depth does not have to be checked.

Note: On systems with multiple monitors, only the color depth of the primary monitor is checked.

Memory size

Enter the minimum required physical memory (RAM) size, expressed as megabytes (MB; 1 MB = 1024 x 1024 bytes), or 0 if no memory size check is required.

Note: Windows typically underreports the amount of memory slightly. For example, a system with 512 MB of RAM installed may be reported as having 511 MB. Please bear this in mind if you specify a minimum Memory size value; it's safest to specify 1 MB less: 127 instead of 128 MB, 255 instead of 256, etc.

Reset all

Click this button to reset all system requirements to their defaults, which generally means that any and all Windows versions and hardware specifications are accepted.

Tarma Installer 2.x upgrade notes

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Tarma ExpertInstall User's Manual - Topic last modified on 21/01/08 11:03
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