I had the same problem on Vista x64 home premium using IconPackager 44.21.182_05.21.2009.impulse.  Also when using the strange and variably named tab to change icon i got a common.dll error.  I reverted back to IconPackager 44.20.178_02.24.2009.impulse and the problems went away.

i restored my system from an Acronis Image that has all stardock stuff removed and registry cleaned because initially i thought i might be infected with something.  I slowly restored my stardock stuff and it happened again but reverting to  IconPackager 44.20.178_02.24.2009.impulse fixed the problem and now no common.dll error.

The Chinese characters are still present on the icon tab in explorer as is the common.dll error but all is working great now from a stardock software point of view.  Deletiing the icon.db in the user files and repooting has fixed the occasional corruption of the icons.  I love this stuff, always keeps me busy tracking down the multitude of places that stardock stuff is located on my computer.  Some consistency would be appreciated but after playing with this stuff and subscribing since windowblind 3 i realize that is unlikely.  It is a comedy but at least is working at the moment and is a lot of fun.

hahahahahahahahahahaha

I had more problems.  This is unbelievable really.  hahahahahahahaha

Finally restored a disk image and stopped using MyColors.  Everything is working great again except for the chinese characters.  No more common.dll errors.  A pity, missing out on all the great MyColors skins that are supposed to be a benefit of ObjectDesktop Subscription.  Funny how MyColors and Windowblinds will alternately report problems with installation when using Impulse depending on which was installed last.  hahahahha

Devine comedy indeed!!!!

hahaha, and nobody cares!!!!

To get rid of the weird characters for the "icon tab", I  just removed the tab (I  never use it anyway).

And to remove the tab: just delete or  rename shellext64.dll

That strange tab is kinda cool after a while.  You never know what characters will show up.

Not using MyColors to apply icon packages has solved the other mess.  I did figure out how to get the icon packages out of the gifted mycolors themes and use them in Iconpacker bypassing mycolors!

I still have that.  I hadn't noticed it because I have been using IP to change the icons.  Then yesterday one of my destop icons reverted to a previous one on its own and I tried to use the icon tab to change it and got the common.dll error again.  Strangely and randomly unstable.  At least I haven't had to restore my imageres.dll files recently.

well, IP upchucked on me today and trashed my imageres.dll files again.  i tried just restoring the corrupted files reverting to windows defaults and deleting the icon.db plus rebooting which worked but logonstudiovista didn't like the older imageres.dll files so eventually i ended up restoring a 2 day old acronis image.

This bug is still there on the latest release of IP with Windows 7 Ultimate 64 bit.