Save within app after deployment

[Gimly]

Hi all,

Ok, when my programme is purchased, the owner has to email me and send me some info, I generate a Serial number for him/her to enter to make the programme run.

My question: How can I save the SN he/she enters without saving it in a DB?
Can I save it in a txt file so that everytime he runs the programme he does not have to enter the SN, the programme checks it automatically?

I also want the programmes' features (ie. buttons and all that) to be disabled until he enters a valid SN. How do I do this?

Any help would be greatly appreciated.

Regards
Gimly

 

[jebenson]

I think that you would want to save the SN in a registry key - assuming that the prog. is going to be installed on Win 95 or later machines. Search MSDN for "SaveSetting" and this should lead you to 4 VB functions that deal with registry entries: SaveSetting, DeleteSetting, GetSetting and GetAllSettings. As for disabling buttons, etc., you should be able to do this depending on whether or not there is a valid SN in the registry key.

Hope this helps. Good luck. I used to rock and roll every night and party every day. Then it was every other day. Now I'm lucky if I can find 30 minutes a week in which to get funky. - Homer Simpson

 

[Gimly]

Thank you for your reply jebenson.

Is there any other way I may be able 2 do it, save as a text file or something, I'm not comfortable in writing to the registry, but if there is no other way, I guess I'll just have 2 do it that way.

Thanx again for ur help.

Regards
Gimly

 

[jebenson]

If you want to save it in a text file, you would do this:

Open "C:\Path\to\file\filename.txt" for Output as #1
Print #1, &quot;<serial number>&quot;
Close #1

This will create a text file and write the serial number to that file. You need to be careful only to call the code to create/write the file when you need to save the SN, as the Open statement will overwrite whatever is already there. To check the SN you would just do this:

Dim SN as string

Open &quot;C:\Path\to\file\filename.txt&quot; for Input as #1
Line Input #1, SN
Close #1

This will read the SN from the text file to a variabled called SN.

Hopr this helps. Good luck. I used to rock and roll every night and party every day. Then it was every other day. Now I'm lucky if I can find 30 minutes a week in which to get funky. - Homer Simpson

 

[Gimly]

Thank you again,

You will not know how much I appreciate all your help. I will definately take all your info into consideration and I'm sure I will use it.

Regards
Gimly