Registration Password lost? To add a path in this variable, add a ; at the end and enter the path to add, behind this ; 2. To add a path in this variable, add a ; at the end and enter the path to add, behind this ; 3.
Then, click on : Advanced system settings. Then, click on the "Environment Variables" button at the bottom of the window. You must be logged in to post a comment. Share your opinion. Check out this list of environment variables, along with their descriptions.
To see a complete list of the environment variables that are active on a Windows XP system, follow these steps:. You'll see a list of the current environment variable settings. Here's a sampling of Windows XP's environment variables:. Automatically sign up today! Greg Shultz is a freelance Technical Writer.
Previously, he has worked as Documentation Specialist in the software industry, a Technical Support Specialist in educational industry, and a Technical Journalist in the computer publishing industry. To see a complete list of the environment variables that are active on a Windows XP system, follow these steps: Open a Command Prompt window. Type Set and press [Enter]. Because its directory is listed in the PATH variable, however, it is sufficient to reference just the file name sol.
As is explained on other pages , file extensions tell Windows what it is supposed to do with a file. Certain file extensions indicate that the file is executable ; that is, the file opens a program or does something. The extension.
EXE is the most common. Thus the filename sol. If files have the same name but different extensions, the operating system searches in the following order of precedence:. BAT, and. Existing variables can be edited or deleted and new ones can be added in several ways. For temporary changes, the command " Set" can be used in scripts or in a command window.
Note that the there must be no spaces on either side of the "equals" sign. Changes made with "Set" disappear when the command window is closed, thus rendering this method fairly uninteresting for the average PC user. A more useful application of "Set" is to list the environment variables.
Open a command window and enter "set" to see what the variables are on your system. Those who wish can consult this Microsoft article for more details about "Set".
A more permanent way to manage environment variables is provided in the System Properties dialog box. In the box that opens, click the "Advanced" tab to obtain the dialog box shown below. Next, click the button "Environment Variables". The figure below shows the "Environment Variables" dialog box that opens next. It lists two kinds of variable- those that apply only to the current user and those that apply to the whole system.
You can simply scroll down the lists to see what is on your system or you can edit the lists. To create a new variable, use the "New" button. There are also buttons for editing and for deleting variables. The box for adding a new user variable is shown below. Generally, this is likely to be a directory that you use frequently but can be any string of less than bytes.
The maximum total size for all environment variables, including variable names and the "equals" sign, is characters. The next figure shows a box for editing a variable; in this case it is the PATH variable. Be sure to remember to separate directory names with a semicolon. If you use programs in a particular directory a great deal, you may wish to add it to the path.
It is not part of the standard Windows XP setup but a command-line tool called setx. This tool extends the set command so that permanent changes in the environment variables can be made. The "Set" command can be used in a command prompt together with a redirection to a text file to make a list of the current environment variables.
Microsoft also has a VBScript that lists environment variables on this page. For those who are experienced with editing the Registry, there is another way to make changes in environment variables. Editing the Registry is primarily for scripts used by systems administrators and is not recommended for the average PC user. The file autoexec. For the most part, Windows XP will ignore any autoexec.
Although environment variables can be set in this way, there are probably better ways. Search this site. Navigation Home.
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