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Is there a way to set a system variable with a VB application? I need to permanently set a variable on the users computer. I believe most installation programs do this sort of thing so I'm hoping it isn't too difficult (I'm fairly new with VB). Any help you can offer will be greatly appreciated.
Not very sure but have a look at this:
Code:Environ Function
Returns the String associated with an operating system environment variable.
Syntax
Environ({envstring | number})
The Environ function syntax has thesenamed arguments:
Part Description
envstring Optional.String expression containing the name of an environment variable.
number Optional.Numeric expression corresponding to the numeric order of the environment string in the environment-string table. The numberargument can be any numeric expression, but is rounded to a whole number before it is evaluated.
Remarks
If envstring can't be found in the environment-string table, a zero-length string ("") is returned. Otherwise, Environ returns the text assigned to the specified envstring; that is, the text following the equal sign (=) in the environment-string table for that environment variable.
If you specify number, the string occupying that numeric position in the environment-string table is returned. In this case, Environ returns all of the text, including envstring. If there is no environment string in the specified position, Environ returns a zero-length string.
They (env variables) cannot be modified permanently from VB code running under Windows, because every time a reboot occurs, they are set again from a boot script - AUTOEXEC
Your installation code has to modify AUTOEXEC for that to happen.
ie. ---------------------------
Code:' the [whatever] depends on the OS you're using
FileCopy "c:\AUTOEXEC.[whatever]" , "c:\AUTOEXEC.OLD"
Open "c:\AUTOEXEC.[whatever]" for append as #1
Print #1, "SET myvar = something"
Close #1
:)