If you have already installed two SPs to SolidWorks and have successfully downloaded the Windows Hotfix and installed SP1.1, please be kind and share how you reached your success. IMHO, this is a complete unnecessary pain in the ass. Step 1. Call the MS number SW provides. Fish my way thru MS support and was given a different number to call for Hotfixes, which of course, was not the number SolidWorks listed. After a long time holding and repeating my name, email address, phone number, hotfix I was calling about several times (despite them telling me all that info was "in the system".) I finally get the Hotfix zip.exe file. Step 2. Open Hot fix zip.exe file. It gives me two .exe files. One of which is a little program that runs and apparently patches things. The other file self-expands and puts a msi.pdb file in a strange folder. No instructions. I search for .pdb files on my computer with no such luck of replacing one. I reboot. Step 3. Begin installing my SW 1.0-1.1 patch. I get some strange (1603-0) error from the SW installer and guess what: msiexec.exe crashes. Imagine that. Apparently I did something wrong and the installer isn't patch correctly. I guess this means installing from scratch, downloading 0.0-1.1 and praying that SolidQuirks has the Spanish help file corrected by now. BTW- What's the reasoning behind the 1.1 release so soon after 1.0?