Wm 46 Error Please use an Obsolute path instead of C%5c

i´m trying to install Wm 4.6 in Windows XP but i get this error, "Error : Please use an Obsolute path instead of C:", somebody know how fix that?. Thank you

Try giving the path c:\webMethods4.6..so that it will prompt to create the folder which is not exist.

HTH,