C# and CAS and websites -- HELP!!

[nloding]

CAS is tough stuff, and honestly seems incredibly ridiculous. Too bad there aren't any true work arounds. I need some help from the smart people here to get an app running when downloaded off a website. This app requires the ability to modify a file locally on the PC, so programming it as "low trust" isn't a possibility. It's located on a website, we'll call it my.domain.com (it's not a publically accessible site -- only for clients of my company). Right now, it throws the usual Security.Permissions error when ran off the website. What are my options?

I can do the RequestMinimum, but that doesn't seem to work on anything I've tried. From what I understand, it's not actually "requesting" permission, it just checking to see if it has it. My next option is to grant FullTrust to my.domain.com. How do I do this?

I've ran the following on my PC "caspol.exe -ag 1.3 -site my.domain.com FullTrust". But I still can't run anything off that site.

I have tried about 14 different commands now, and they all produce nothing. Here's a copy of my caspol -lg list:

1.  All code: Nothing
   1.1.  Zone - MyComputer: FullTrust
      1.1.1.  StrongName - 00240000048000009400000006020000002400005253413100040
0000100010007D1FA57C4AED9F0A32E84AA0FAEFD0DE9E8FD6AEC8F87FB03766C834C99921EB23BE
79AD9D5DCC1DD9AD236132102900B723CF980957FC4E177108FC607774F29E8320E92EA05ECE4E82
1C0A5EFE8F1645C4C0C93C1AB99285D622CAA652C1DFAD63D745D6F2DE5F17E5EAF0FC4963D261C8
A12436518206DC093344D5AD293: FullTrust
      1.1.2.  StrongName - 00000000000000000400000000000000: FullTrust
   1.2.  Zone - Intranet: LocalIntranet
      1.2.1.  All code: Same site Web
      1.2.2.  All code: Same directory FileIO - 'Read, PathDiscovery'
   1.3.  Zone - Internet: Internet
      1.3.1.  All code: Same site Web
      1.3.2.  Site - updates.cubase.org: FullTrust
      1.3.3.  Url - updates.cubase.org: FullTrust
      1.3.4.  Url - [url]http://updates.cubase.org/*:[/url] FullTrust
   1.4.  Zone - Untrusted: Nothing
   1.5.  Zone - Trusted: Internet
      1.5.1.  All code: Same site Web
   1.6.  Site - updates.cubase.org: FullTrust
   1.7.  Site - updates.cubase.org: FullTrust (LevelFinal)
   1.8.  Url - [url]http://updates.cubase.org/*:[/url] FullTrust

As you can see, the URL is supposed to be http://updates.cubase.org/ and anything ran from there should be granted FullTrust. What do I need to do to get that site to have FullTrust on my workstation?