You cannot install a ClickOnce application that is based on the .NET Framework 4.0 Beta when the application name contains spaces and when the application is published on a Web site or on an FTP server
There are spaces in the name of a ClickOnce application that is based on the Microsoft .NET Framework 4.0 Beta.
The application is published on a Web site or on an FTP server.
You try to install the application.
In this scenario, the installation process fails.
Spaces in the application name are converted to symbols during the installation process. However, the spaces are converted incorrectly to PLUS SIGN (+) characters instead of to the "%20" character string.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
You must have the .NET Framework 4.0 Beta 2 installed to apply this hotfix.
You do not have to restart the computer after you apply this hotfix if no instance of the .NET Framework 4.0 is being used.
Hotfix replacement information
This hotfix does not replace other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
To work around this problem, follow these steps:
In the Microsoft Visual Studio IDE, point to Open on the File menu, and then click File.
Locate the folder that contains the Setup.exe program, and then open it.
Expand node 41, and then double-click the SETUPCFG binary file.
Copy the binary stream. The binary stream corresponds to the values that start with "B.e.g.i.n . . A.p.p.l.i.c.a.t.i.o.n…." in the rightmost column.
Paste the binary stream into a text editor.
Locate UrlName values that contain spaces.
In the text editor, replace all the spaces that are in the UrlName values with the "%20" string.
Copy and paste the binary stream back into the SETUPCFG binary file.
Save the Setup.exe program.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.