VBScript chr() appears to return wrong value

I'm trying to convert a character code to a character with chr(), but VBScript isn't giving me the value I expect. According to VBScript, character code 199 is:

�

However, when using something like Javascript's String.fromCharCode, 199 is:

Ç

The second result is what I need to get out of VBScript's chr() function. Any idea what the problem is?

Edited to reflect comments

Chr(199) returns a 2-byte character, which is being interpreted as 2 separate characters.

• use ChrW(199) to return a Unicode string.
• use ChrB(199) to return it as a single-byte character