JOINT FILING AGREEMENT

Exhibit 99.1

JOINT FILING AGREEMENT

     In accordance with Rule 13d-1(k)(1) promulgated under the Securities and Exchange Act

of 1934, as amended, the undersigned hereby agree to the joint filing with each other on behalf of each of them of such a statement on Schedule 13G with respect to the common stock, par value $0.01 per share, beneficially owned by each of them of SS&C Technologies Holdings, Inc., a Delaware corporation. This Joint Filing Agreement shall be included as an Exhibit to such Schedule 13G.

     IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of the 11th day of February, 2011.

	TCG Holdings, L.L.C.
	By:	/s/ X. Xxxxxx Xxxxxxx as Attorney-in-Fact for Xxxxx X. Xxxxxxxxxx
		Name:	Xxxxx X. Xxxxxxxxxx
		Title:	Managing Director
	TC Group, L.L.C.
	By:	TCG Holdings, L.L.C., as its
		Managing Member
	By:	/s/ X. Xxxxxx Xxxxxxx as Attorney-in-Fact for Xxxxx X. Xxxxxxxxxx
		Name:	Xxxxx X. Xxxxxxxxxx
		Title:	Managing Director

TC Group IV Managing GP, L.L.C.

	By:	TC Group, L.L.C., as its
		Managing Member
	By:	TCG Holdings, L.L.C., as its
		Managing Member
	By:	/s/ X. Xxxxxx Xxxxxxx as Attorney-in-Fact for Xxxxx X. Xxxxxxxxxx
		Name:	Xxxxx X. Xxxxxxxxxx
		Title:	Managing Director

   TC Group IV, L.P.

	By:	TC Group IV Managing GP, L.L.C.,
		as its Managing Member
	By:	TC Group, L.L.C., as its
		Managing Member
	By:	TCG Holdings, L.L.C., as its
		Managing Member

	By:	/s/ X. Xxxxxx Xxxxxxx as Attorney-in-Fact for Xxxxx X. Xxxxxxxxxx
		Name:	Xxxxx X. Xxxxxxxxxx
		Title:	Managing Director

   Carlyle Partners IV, L.P.

	By:	TC Group IV, L.P., as its
		General Partner
	By:	TC Group IV Managing GP, L.L.C.,
		as its Managing Member
	By:	TC Group, L.L.C., as its
		Managing Member
	By:	TCG Holdings, L.L.C., as its
		Managing Member

	By:	/s/ X. Xxxxxx Xxxxxxx as Attorney-in-Fact for Xxxxx X. Xxxxxxxxxx
		Name:	Xxxxx X. Xxxxxxxxxx
		Title:	Managing Director