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you cant have your dll unregister automatically - but you can have it check the datediff of when it was installed and when its being accessed.<br />
<br />
you can store the install date in the registry to check on access or in a text file. 
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you cant have your dll unregister automatically - but you can have it check the datediff of when it was installed and when its being accessed.

you can store the install date in the registry to check on access or in a text file.

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You can unregister it in code by shelling regsvr32 like so - Shell &quot;regsvr32.exe MyDLL.dll&quot; &amp;&nbsp;Space(1) &amp;&nbsp;&quot;/u &nbsp;/s&quot;
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You can unregister it in code by shelling regsvr32 like so - Shell "regsvr32.exe MyDLL.dll" & Space(1) & "/u  /s"

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LizelleFan,<br />
<br />
I have only one file, is the DLL file, how can I make it run the shell code automatically?<br />
<br />
JohnBPrice:<br />
Thank for your solution
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LizelleFan,

I have only one file, is the DLL file, how can I make it run the shell code automatically?

JohnBPrice:
Thank for your solution

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Oops! Guess I read the question too quickly. Hope the other solution works!
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Oops! Guess I read the question too quickly. Hope the other solution works!

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<div class="content wysiwyg-content">
Hi all,<br />
<br />
I've developed a dll by programming with VB6 named &quot;MyDLL.dll&quot; and also register to system by calling &quot;regsvr32 D:\mydll.dll&quot;. I just want to know how can i unregister it in programming VB. Here is the scenario:<br />
<br />
After 4 days since register the dll, i want to dll will unregister itself from system? How can i do that?
</div>
</div>


Hi all,

I've developed a dll by programming with VB6 named "MyDLL.dll" and also register to system by calling "regsvr32 D:\mydll.dll". I just want to know how can i unregister it in programming VB. Here is the scenario:

After 4 days since register the dll, i want to dll will unregister itself from system? How can i do that?

How to unregister dll automatically when reached a specifi date/time?

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.