I have created an application with which you can convert
an image file (gif, dwg etc) to a jpg file.
Now I want the same thing should be done on a web part. I
have almost everything the same as the application but it
doesn't work.
It has to create the registry settings needed for the
components to function. It also has to write a file to
the local disk of the server. But it just doesn't work.
This is some of the code:

Dim exeDocObject As New RxDocCom.RxDoc
Dim exeRimObject As New RxDocCom.RxEngine
Dim regkey As New RxDocCom.RX_REGISTRY_KEY
Dim exeConvertObject As New RxConvertCom.RxConverter

'Creates a connection with a document in a Document
Library
objWeb = mySiteCollection.OpenWeb()
objList = objWeb.Lists(_DocLibName)
_myItem = objList.Items.GetItemById(CType(_DocID,
Integer))

'sets the url to the document in the document library
_URL = "http://localhost" + _myItem.File.ServerRelativeUrl

'the location where to save the converted file
Dim url As String
url = "file:///d:/test.jpg"

exeRimObject.Start(regkey, "SOFTWARE\Rasterex\RxFilters")

exeDocObject.Open(_URL)
'method to convert the file
exeConvertObject.RasterFileFit(url, exeDocObject, "JPEG
File Interchange Format", 300, 300, 24, &HFFFFFF, 96)


Now it will timeout on the "exeRimObject.Start
(regkey, "SOFTWARE\Rasterex\RxFilters")".
It also throws an exception when
exeConvertObject.RasterFileFit will be called.

Does someone knows how to access the registry and how to
write files to a local disk? Many thanks!

There are a lot of security issues involved in writing webparts...
especially in their access to resources like filesystem, registry and the
sharepoint object model. There is a good article available on the MS website
on this topic:

http://msdn.microsoft.com/library/?u...sssecurity.asp

Have fun!