Releasing a .dll that a VI holds

Hi guys, I have a dynamically opened sub-VI (opened by )
once it gets opened, it seems to "hog" on to a dll file (namely, LVWutil32)
and by hogging, I mean that if I try to delete the folder that contains this dll, I get an access denied exception,
and if I close that sub-VI, the exception goes away.
Now, what I would like to know is: how do I "close" sub-VI programmatically in labview, so I can remove the folder?
Cheers!!

I think there are several things we have to discuss/make clear here:
1. I have no DLL called LVWutil32.dll on my system. Windows file search did not result in any hit when using "lvwutil32" as search parameter. Where does this derive from? Where is it stored on your disk? How is it used in your code?
2. If loading a DLL, the OS attaches the DLL execution to the process of the calling application. Hence, the DLL will be attached to the process "LabVIEW.exe" (or "<applicationname>.exe"). As long as this process "lives", the OS can decide (or not) wether to deattach the DLL. Since LV is working very conservative with resources, DLLs are not likely to be unloaded until the process is shut down.
3. Referring to 2, there is a possible way to load and unload DLLs dynamically on purpose. See this link for information.
just my 5 cents,
Norbert
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

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Post Author: YAO
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