ZBrush is a 32-bit app so it uses the 32-bit version of the C++ redistributable.
According to what I’ve been reading, error code 1935 crops up when there’s a problem with your .NET 2.0 installation. Try reinstalling that and see if it fixes this issue.
Method 1: Repair the Microsoft .NET Framework version 2.0 installation
To do this, follow these steps:
Click Start, click Control Panel, and then click Add or Remove Programs.
In the Currently installed programs list, click Microsoft .NET Framework 2.0, and then click Change/Remove.
Click Repair, and then click Next.
Method 2: Install the .NET Framework version 2.0
If a version of the .NET Framework is not installed on the computer, install the .NET Framework version 2.0. To do this, visit the following Microsoft Web site:
http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5
Method 3: Reinstall the Microsoft .NET Framework version 1.1
If the .NET Framework version 1.1 is installed, remove it, and then reinstall it.
To remove the .NET Framework version 1.1, follow these steps:
Click Start, click Control Panel, and then click Add or Remove Programs.
In the Currently installed programs list, click Microsoft .NET Framework 1.1 and then click Change/Remove.
Click Yes to uninstall the .NET Framework version 1.1.
To reinstall the .NET Framework version 1.1, visit the following Microsoft Web site:
http://www.microsoft.com/downloads/details.aspx?FamilyID=262d25e3-f589-4842-8157-034d1e7cf3a3