Problems registering DLL using WPI

[tcarman]

G'day All,

I am experiencing a strange issue when installing Notepad++ using WPI. A feature of the Notepad++ install is the shell extention (right-click) to open files in Notepad++ which is done by registering a dll file either using the NSIS packager or manually.

I have attempted to do this using a silent install and from a command line and neither work (only the dll registration fails) when executed from WPI.

When the program is installed the exact same way but called from a batch file instead of WPI, the shell extension works.

Any ideas why this is happening ?

[tcarman]

Hmm..

I think I could have spoken too soon. It appears the dll doesn't want to register at all now.

It was working and has since stopped.

I'll keep investigating

[sadicq]

Are you trying on the same machine you registered it first?

Maybe it's already registered on that machine.

Try

regsvr32 /u yourfile.dll

before registering it.

[tcarman]

OK, so I rebuilt my VM machine again and ran WPI thru GUIRunOnce and again the DLL did not register.

I call the following batch file from WPI in order to install Notepad++

xcopy c:\build\notepad++\. "%ProgramFiles%\Notepad++\" /e/q/c/y
cscript c:\build\scripts\notepad++.vbs //B
regsvr32 /s "%ProgramFiles%\Notepad++\nppshellext.dll"

Everything works except the DLL registration.

I unregistered the DLL and removed the files then ran the batch file manually and it works fine !?!

This has only started happening since I started WPI. I can't for the life of me see why WPI would be the issue but it worked when I called it from another batch file when using GUIRunOnce.

Any ideas ?

[tcarman]

So in another attempt I ran the regsvr32 command in the 'Execute After' in the Options>Tools of WPI.

Wouldn't you know it, it works. So can anyone tell me why it doesn't work during the normal processing of WPI ?

[sadicq]

One thing I forgot to ask: are putting those commands directly into WPI or are you creating batch file that contains those?

[Avneet]

One thing I forgot to ask: are putting those commands directly into WPI or are you creating batch file that contains those?

his using a batch file .. thats what he said in his previous post

[tcarman]

@sadicq I actually tried both ways and neither worked. The only way I have successfully got it to work is by running the regsvr32 line of code in the 'Execute After' section of WPI.

[tcarman]

I was messing around rearranging my install order and it now appears to be working again. Not exactly sure how I fixed it though.