When I download the .vsi installer file and double click to install it I get the error 'String cannot have zero length'

Anyone who has a clue about what the problem might be ?

Happens to all .vsi files that I've donwloaded. Also happens if I just click Open instead of first downloading it.

 Maybe you had installed Visual Studio 2005 and VWD 2005 Express and then you uninstalled one of the two and a couple string values got deleted in the registry.  Try the following to see if it works for you:

1. Click START then RUN then type REGEDIT and Enter.
2. Go to this location on the registry: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSEnvCommunityContent\ContentTypes\VSTemplate]
3. On the right side of the screen right click --> New --> String Value and add the following two string values

 Value Name = "ClassName"    Value Data = "VSContentInstaller.VSTemplateInstallerPage"
 Value Name=  "DisplayName"  Value Data = "#VSTemplateContentDisplayName"

Close the registry and try again!... hope it helps.

well it worked for me - thanks!

Had the same problem with vs 2008 installed and it worked well for me too.

Thanks.

andrezzz9:

 Maybe you had installed Visual Studio 2005 and VWD 2005 Express and then you uninstalled one of the two and a couple string values got deleted in the registry.  Try the following to see if it works for you:

1. Click START then RUN then type REGEDIT and Enter.
2. Go to this location on the registry: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSEnvCommunityContent\ContentTypes\VSTemplate]
3. On the right side of the screen right click --> New --> String Value and add the following two string values

 Value Name = "ClassName"    Value Data = "VSContentInstaller.VSTemplateInstallerPage"
 Value Name=  "DisplayName"  Value Data = "#VSTemplateContentDisplayName"

Close the registry and try again!... hope it helps.

It worked for me too, thanks