The Environ "list" can be referenced by number so you can check the list
from start to finish.

You can also check for the environment variable by name directly:
eg. MsgBox Environ("NUMBER_OF_PROCESSORS")


This code checks for the existence of the environment variable
Sub test()
Dim blnExists As Boolean, strSearch As String
strSearch = "NUMBER_OF_PROCESSORS"

blnExists = (Environ(strSearch) < "")

MsgBox blnExists
End Sub


--
Rob van Gelder - http://www.vangelder.co.nz/excel


"Jan Kronsell" wrote in message
...
Hi Bob

Thanks. I made the list myself using similar code to yours. I just
wondered
if a list of possible values to be checked for existed.

Jan

"Bob Phillips" skrev i en meddelelse
...
Jan,

There is no set list as it will depend upon what environment variables
have
been set on each particular machine.

Here is some code to print it all out

Dim iLoop As Long

iLoop = 1
Do
Debug.Print "#" & Format(iLoop, "00") & " " & Environ(iLoop)
iLoop = iLoop + 1
Loop Until Environ(iLoop) = ""


--

HTH

Bob Phillips
... looking out across Poole Harbour to the Purbecks
(remove nothere from the email address if mailing direct)

"Jan Kronsell" wrote in message
...
I have to add, that I have created the list myself, i just wondered if
it
could be found anyywhere

Jan

"Jan Kronsell" skrev i en
meddelelse ...
Is there anywhere I can find a list of the Environment numbers I can
use
with the Environ statement. like Environ(13) gives me the number of
Processors.

I have seach the VBA help wih no luck so far.

Jan