In order to make the webpart work, please perform the following steps:
1. Add access rights for the users IIS_IUSRS and NETWORKSERVICE to some DCOM-Components, which are:
-WIA Device Manager
-WIA Extension Host for 64 bit extensions
If you are not able to set any access permissions for this DCOM-Components - you have to take ownership to them via the registry, if you don't know how to do this, watch
this video: http://www.youtube.com/watch?v=F2tcSHh4bGQ
2. Install from Package "WithoutSetup"
2.1 Install the Farm Solution
Open your "SharePoint 2010 Management Shell" and type the following command into the shell:Add-SPSolution FULLPATHTOWSP\DeploymentProject.wsp
Please replace FULLPATHTOWSP always with the full-path to the DeploymentProject.wsp file
Then we need to deploy the solution to the farm:Install-SPSolution -Identity DeploymentProject.wsp -GACDeployment
3. Install the User-Solution from "SharePoint 2010 Management Shell"
First we need to upload the user-solution to the local sharepoint-site:Add-SPUserSolution -LiteralPath FULLPATHTOWSP\embDocumentInhalator.wsp -Site http://URLTOYOURSITE
Please replace the FULLPATHTOWSP with the full path to your embDocumentInhalator.wsp file and URLTOYOURSITE with
the url to your SharePoint site in wich you want the user-solution to install.
Second step is to deploy the user-solution to the site:Install-SPUserSolution -Identity embDocumentInhalator.wsp -Site http://URLTOYOURSITE