Read registry key which may exist ... without error ! 2

[gmail2]

Hi all

I'm writing a script which will be used to check a registry key named version under HKLM\Software\software-name and if the version is below a certain number, copy a file and increment the version number.

However, at the moment, HKLM\Software\software-name\version does not exist so my script keeps giving an error. Obviously it works fine if I put ON ERROR RESUME NEXT at the top of the script, but is there any other way of getting around this ?

Thanks in advance

Irish Poetry - Karen O'Connor
Irish Poetry and Short Stories - Doghouse Books
Garten und Landschaftsbau

 

[PHV]

Have a look here:

http://msdn2.microsoft.com/en-us/library/aa393664.aspx

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[markdmac]

Use WMI as PHV has suggested or go with what you already know. Use On Error Resume Next in conjunction with checking for the Err.Number or Err.Description. You don't have to put On Error Resume Next at the top of your script. You can put it just before the registry read and then turn it off afterwords with On Error GoTo 0. Don't forget to do an Err.Clear after checking your error.

Many people have an aversion to using On Error Resume Next, I don't understand the hesitation. Used properly it is a valuable tool for troubleshooting and taking corrective actions based on unforeseen circumstances. That is good programming technique. If abused it can of course just mask poor programming. Strive for the former rather than the latter.

I hope you find this post helpful.

Regards,

Mark

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http://www.thespidersparlor.com/vbscript

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[gmail2]

Hi Guys

thanks for the replies - it was only a small script and I'm not exactly an expert on scripting so I decided to go for the ON ERROR RESUME NEXT option

markdmac - I didn't know that it can be used that way so thanks for that, much appreciated

Irish Poetry - Karen O'Connor
Irish Poetry and Short Stories - Doghouse Books
Garten und Landschaftsbau