A 8.1 The post-installation program is trying to search your hard disk to update the ini file (wingx.ini,ortep.ini or winxd.ini). There is a function in this program which appears to fail under Windows 7 when searching the main (c:) drive (though it works with all other versions of Windows!). A fix is to close down the program and then place an empty file called "wingx.ini" in the directory pointed to by the environment variable WINGXDIR. If the problem is occuring with Ortep, an empty file called "ortep.ini" (NOT "ortep3.ini" - this is the old name for the init file!) should be placed in the directory pointed to by environment variable ORTEPDIR (or ORTEP3DIR). If the problem is occuring with WinXD, place an empty file called "winxd.ini" in the winxd\bin directory where all the other XD executables are located. Doing this should by-pass the searching of the hard disk. If you then start up the program it will write a default template version of the ini file, but you will need manually edit it in order for all the the plugin programs to work (this is not very important for WinXD). You MUST close down WinGX/Ortep/WinXD before you do this manual editing.
Apparently the cure here (thanks to Robin Bedford for this information) is to delete
the icon cache. To do this :
Press the windows (flag) key and r to get the run command (or start - run) then type "cmd" (without parentheses) then hit OK to get the Command Prompt box and then type in this box the line
del %userprofile%\appdata\local\iconcache.db /a
Then hit return and reboot. NOTE - this may only be an issue with the 64-bit version.