Okay…
I downloaded the very latest beta (v0.9.5-31-g3ca42405) and now --exclude-file works with the following:
*.ost
*.tmp
AppData\Local\Microsoft\Windows\INetCookies\**
AppData\Local\Microsoft\Windows\INetCache\**
AppData\Local\Microsoft\Internet Explorer\DOMStore\**
AppData\Local\Microsoft\Internet Explorer\imagestore\**
AppData\Local\Microsoft\Internet Explorer\imagestore\**
C:\Users\admin
C:\Users\administrator
C:\Users\mss
Cache\**
Code Cache\**
Copitrak\LOGGING\**
CryptnetUrlCache\**
GPUCache\**
IconCache*.db
Media Cache\**
Temp\**
Temporary Internet Files\**
WER\ReportQueue\**
WebCache\**
cache\**
iconcache*.db
temp\**
Now if only there was an --iexcludes-file to ignore case… but this will do for now! 