回复： Re: how to protect all VIs by applying a password to the main vi?

[ragu.c]

Dear folks,

i'm working in LV8.6. In my project, i have lot of vis. i need to protect those vis by applying a password. so whether i should go for every vi and make password protection?. Is any LV feature  available for this without developing any code?

[falkpl]

You can use a source distribution, there is a setting for setting all vi passwords to protect the distribution.

[Norbert_B]

Paul is absolutly right because this is the recommended and most comfortable solution.

But there is one issue: it requires the application builder. The application builder is part of the professional package of LV or has to be purchased as an extra toolkit.

You can nevertheless write a simple set of VIs opening the VIs and locking them (so a custom made tool).  This, of course, requires proramming......

Norbert 

[muks]

yes and just my personal opinion..... Dont do it unless this is really neccasary......

[falkpl]

I like this option because I dont password protect my vi unless absolutly necessary.  I feel that it is much more likely that I lock myself out of a vi than someone gets very rich steeling my vi's inner workings.  The app distribution allows setting the passwords on a copy of code that needs to be protected.  if the source is never distributed externally then you dont have to protect the vi in the project.  Usually code is distributed as an exe and protection is not needed since you can remove the block diagrams.  what is the use case you are interested in for protecting your vi's ip?

[Coq_Rouge]

I have learned, by making mistakes to many times. NEVER EVER password any files in your "master copy" of the source code 😉

[Mechtest]

i searched the labvie help and  did not find how to remove the block diagram.

would you give me some hints?

[muks]

[Norbert_B]

The screenshot muks provided is for LV 7.x and older.

Since LV 8.x (and later), you have to create a source distribution in order to remove the block diagram. 

 hope this helps,

Norbert 

[rpr]

I will also warn you against password protecting the vis. I was badly irritated once and had to redo everything from the beginning....