How to Resolve Windows Cannot Find Null when Launching Internet Explorer 7 in Explorer Mode

After launching the Internet Explorer application, users receive the following error message inside a dialog box:

“Windows cannot find ‘(null)’. Make sure you typed the name correctly, and then try again. To search for a file, click the start button, and then click Search.”

When you have published an application in Citrix using Internet Explorer 7 in Explorer mode such as:
C:\Program Files\Internet Explorer\iexplore.exe –e \\computername\foldershare

Use the hidden IE7 iexplore to publish app
"%windir%\ie7\iexplore.exe " -e \\computername\foldershare