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The Installer
You should have received a file called 'dualcalc installer.exe'. If you do not have the archive file yet for any reason, you can download it by clicking on the link below:
http://www.crw.gov.uk/resources/dualcalc installer.exe
When you use the download links on this page your browser will probably give you the option of running or downloading/saving the installer program. We would recommend using the download/save option, this way you will have a copy if you need to install the material again and can keep it as a backup.
Installing
DualCalc's installer program is now built with Jordan Russell's Inno Setup compiler. In most cases you can probably just run the installer, accept the licence conditions and click through the default settings, but there are options to choose where you want to save the files, whether you want a folder in the Start Bar menu and whether you want a desktop icon.
If Windows complains that you do not have the appropriate rights to install programs, you will have to contact your IT support colleagues for assistance or log on to your PC as an administrator.
By default, for Windows XP and Vista users, DualCalc uses folders inside your PCs 'Documents and Settings' folder for housekeeping and resources and the files you save from the program are kept in folders in there too. With earlier versions of Windows, these versions are all kept in the same folder as the DuualCalc programn files. When DualCalc starts it checks to see if the folders and files it needs are there and makes them if they aren't.
If you experience difficulties with access rights, or if the program produces an error message when you try to start it, [click here] for possible solutions or work-arounds.
Self-extracting archive
Alternatively, as DualCalc really only needs to be copied to your disc drive - it isn't necessary to alter your PC's Registry or other settings or install any additional system components - you may be able to install it without any special access rights by downloading and running the 'dualcalc archive.exe' program. This is a simple self-extracting archive which just copies its contents to the location you specify (you may find it easier to use somewhere like your 'My Documents' folder).
You will however need to carry out the additional step of creating a desktop icon yourself - this involves:
right clicking on the DualCalc.exe file (inside the DualCalc folder in the location you chose for installation) and selecting 'Create Shortcut' if you are using XP or Vista and want to keep all your DualCalc files in the same folder (this is how the archive is set up), right click on the shortcut, select 'Properties' on the menu and add '-local' after the filename in 'Target'. The filename is usually in double-quotes and you should add a space and -local after the closing quote.
You can then move the shortcut to your desktop or Start Bar menu.
http://www.crw.gov.uk/resources/dualcalc archive.exe
Running the program
Double click on the shortcut on the desktop, in your Start Menu, in the Quick Launch panel or wherever you've decided to keep it.
Once the program's dialogue box has appeared, your first step should be to click on the 'Help' button to display these help files and spend some time reading though the documentation. DualCalc is not generally a 'pick it up as you go' program, you need to know what you're doing, both in the context of the program and the legislation, to get the right (or perhaps any) answer out of it.
Upgrading
All you will need to do to upgrade to a later version of the program is overwrite the current installation with the new one.
Note: the inclusion of templates and other resources in the installer means that, on upgrading, those from a previous version will automatically be upgraded too. It does however also mean that any modifications you have made to the templates or details of any additional add-in tools you have installed (in toolset.txt) will be lost, so if you have created your own versions you should move them somewhere safe before upgrading and put them back after, or (in the case of the archive installer) allow it to check for overwrites and avoid overwriting your versions.
Uninstallating
With the Inno Setup installer, DualCalc's folder in the Start Menu provides an unistall option and DualCalc will appear in the 'Add or Remove Programs' wizard in your Control Panel so you can also remove it from there in the usual way. Any files you have added, eg those created in the 'Saved' folder, or any Tools you have added to the 'Tools' folder, while using the program should be retained and the uninstaller may warn you that other items need to be removed 'manually' - you can just delete anything you don't want to keep.
As with installation, if you do not have the appropriate rights to carry this out you will have to contact your IT support colleagues for assistance or log on to your PC as an administrator.
If you are accessing the program over a network, you can probably just delete your personal DualCalc folder and shortcut when you no longer need the program.
Note: simply deleting the program's folder will remove any files you have saved in the 'Saved' folder too. If that's not what you want, back them up somewhere else first or, if you've already done it, look in your Recycle Bin.
Network Installation
From version 1.01a it should be possible to set up the program to run across a network fairly simply, assuming all the appropriate access rights are in place. This will enable you to maintain a single copy of the program and help files which can be accessed by several users.
The program notes the current working folder when it starts up and assumes that is the location for its various folders and files (see above). This means you can install the program on a common network drive and set up DualCalc folders for individual users (eg on their hard drives or their personal network drives) and amend their individual copies of the destop shortcut so that the 'Start in' property points to their individual folders. When they use the shortcut, the program will load from the common drive but individual settings, saved files and tools will be loaded from their own folder without any conflict with other users.
Notes:
1. The tools folder is also assumed to be in the current working folder, so add-in tools will have to be installed individually for each user in their own folder. This allows users to have their own individual set of tools (but you can still provide common tools for all users by placing them in the Tools folder on a common drive and editing their Toolset.txt files to point there).
2. From version 1.03 the program also expects the help files to be in the individual user's folder. If you prefer to only maintain a single set of help files, edit the supplied file 'bounce.htm' (in the Help folder) to point to the common location for the help files, and put just bounce.htm in the individual users' Help folders, renaming it index.htm. The program will then see an index.htm file in Help and open it, and this will re-direct the user's browser to your common location.
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