SOLVED: iexplore.exe – The directory name is invalid

I love the “run as” option in Windows and I use it all the time to test my websites especially if they need Windows Auth (NTLM) or with desktop software which uses your windows creds.

Recently, I started facing this error whenever I try the “run as” option and it got me frustrated enough to find a solution for it. Here is the dreaded message that you get when doing “run as”


Finally found the solution :

To resolve this problem follow these steps:

  1. Click Start, point to All Programs, and then point to Accessories.
  2. Right-click Command Prompt or Notepad, and then click Properties. (I know you are trying to solve IE issues but you have to change properties of notepad or command prompt..weird right?)
  3. In the Start in box, change the value from %HOMEDRIVE%%HOMEPATH% to a system-wide value such as %WINDIR%.
  4. Click OK.

That is it! you are done. Leave a comment if it doesn’t work for you,